Details of a Researcher - Adachi, Shuichi

Papers - Adachi, Shuichi

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改良型前進後退スムーザを用いた飛行中の航空機重量のセンサフュージョンによる推定

石川敦也，成岡優，二宮哲次郎，足立修一

日本航空宇宙学会論文集 70 ( 2 ) 58 - 66 2022.04

Research paper (scientific journal), Joint Work, Corresponding author, Accepted

Spatio-temporal path planning for lunar polar exploration with robustness against schedule delay

Inoue H., Adachi S.

Transactions of the Japan Society for Aeronautical and Space Sciences (Transactions of the Japan Society for Aeronautical and Space Sciences) 64 ( 6 ) 304 - 311 2021

ISSN 05493811

This paper presents a method to obtain a robust optimal path in an environment with time-varying safety features, such as in the lunar polar region. In designing the path for planetary exploration rovers, we must consider various safety conditions, such as terrain hazards, illumination, and communication visibility to the Earth. Some of the safety features are time-varying, and the optimal path should be searched for both the spatial direction and the temporal direction. In addition, there is no guarantee that all of the sequences will be successfully executed on time due to misoperation, failures, or trouble. Therefore, a path that is robust against the delay must be planned so as to guarantee safety even when behind schedule. The authors propose an algorithm called “Robust Spatio-Temporal Path Planner for the Planetary Rover (ROBUST-STP3R)” to obtain a path that is robust against schedule delay in a time-varying environment. This method defines a cost function that consists of the distance as well as the region type cost. To add robustness against schedule delays, the authors consider a weighted summation of the time-varying region type cost with regard to the temporal direction. The effectiveness of the proposed method is demonstrated through use in a simulated lunar polar exploration exercise.

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Resource and Network Management Framework for a Large-Scale Satellite Communications System

Yuma Abe, Masaki Ogura, Hiroyuki Tsuji, Amane Miura, and Shuichi Adachi

IEICE Transactions on Fundamentals of Electronics (Communications and Computer Sciences) E103-A ( 2 ) 492 - 501 2020.02

Joint Work, ISSN 09168508

Satellite communications (SATCOM) systems play important roles in wireless communication systems. In the future, they will be required to accommodate rapidly increasing communication requests from various types of users. Therefore, we propose a framework for efficient resource management in large-scale SATCOMsystems that integrate multiple satellites. Such systems contain hundreds of thousands of communication satellites, user terminals, and gateway stations; thus, our proposed framework enables simpler and more reliable communication between users and satellites. To manage and control this system efficiently, we formulate an optimization problem that designs the network structure and allocates communication resources for a large-scale SATCOM system. In this mixed integer programming problem, we allow the cost function to be a combination of various factors so that SATCOM operators can design the network according to their individual management strategies. These factors include the total allocated bandwidth to users, the number of satellites and gateway stations to be used, and the number of total satellite handovers. Our numerical simulations show that the proposed management strategy outperforms a conventional strategy in which a user can connect to only one specific satellite determined in advance. Furthermore, we determine the effect of the number of satellites in the system on overall system performance.

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μ-マルコフモデルを用いた自動車用二次電池の内部インピーダンスの推定

佐々木理沙子, 川口貴弘, 丸田一郎, 足立修一, 片芝惇平, 長村謙介

計測自動制御学会論文集 56 ( 2 ) 67 - 69 2020.02

Research paper (scientific journal), Joint Work

ベクトル型可変忘却要素付き逐次最小二乗法を用いた非定常雑音下における原子時計の内部状態推定

馬渕俊一郎, 平野将人, 足立修一, 井戸哲也, 花土ゆう子

計測自動制御学会論文集 56 ( 2 ) 45 - 50 2020.02

Research paper (scientific journal), Joint Work

Absum: Simple regularization method for reducing structural sensitivity of convolutional neural networks

Kanai S., Ida Y., Fujiwara Y., Yamada M., Adachi S.

AAAI 2020 - 34th AAAI Conference on Artificial Intelligence (AAAI 2020 - 34th AAAI Conference on Artificial Intelligence) 4394 - 4403 2020

We propose Absum, which is a regularization method for improving adversarial robustness of convolutional neural networks (CNNs). Although CNNs can accurately recognize images, recent studies have shown that the convolution operations in CNNs commonly have structural sensitivity to specific noise composed of Fourier basis functions. By exploiting this sensitivity, they proposed a simple black-box adversarial attack: Single Fourier attack. To reduce structural sensitivity, we can use regularization of convolution filter weights since the sensitivity of linear transform can be assessed by the norm of the weights. However, standard regularization methods can prevent minimization of the loss function because they impose a tight constraint for obtaining high robustness. To solve this problem, Absum imposes a loose constraint; it penalizes the absolute values of the summation of the parameters in the convolution layers. Absum can improve robustness against single Fourier attack while being as simple and efficient as standard regularization methods (e.g., weight decay and L1 regularization). Our experiments demonstrate that Absum improves robustness against single Fourier attack more than standard regularization methods. Furthermore, we reveal that robust CNNs with Absum are more robust against transferred attacks due to decreasing the common sensitivity and against high-frequency noise than standard regularization methods. We also reveal that Absum can improve robustness against gradient-based attacks (projected gradient descent) when used with adversarial training.

Resource and network management for satellite communications systems: A chance-constrained approach

Abe Y., Ogura M., Tsuji H., Miura A., Adachi S.

IFAC-PapersOnLine (IFAC-PapersOnLine) 53 ( 2 ) 3304 - 3309 2020

In this paper, we propose an optimization framework for the resource and network management in large-scale satellite communications (SATCOM) systems with stochastic and time-varying communication requests. Because further expansions of SATCOM systems are expected in the near future, it is of practical importance to develop management methodologies for efficiently and robustly operating large-scale SATCOM systems. To address this problem, in this paper, we formulate a SATCOM network optimization problem within the framework of the chance-constrained model predictive control. In this problem, we require that a joint chance constraint on the bandwidth loss rate is satisfied with a user-specified performance and probability. Because the joint chance constraint is nonlinear in design variables, we relax the constraint to a linear deterministic one for reformulating the original problem into a relaxed deterministic problem. We numerically verify that the proposed method outperforms a baseline methodology and therefore allows us to efficiently manage large-scale SATCOM systems.

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Path Planning for Lunar Polar Exploration Mission Using Linear Temporal Logic

Yuiko Kikuchi, Shuichi Adachi, Hiroka Inoue, Kazumune Hashimoto

2020 AIAA SciTech Forum (AIAA Scitech 2020 Forum) 1 PartF 1 - 9 2020

For path planning of planetary exploration rover travelling toward several points of interest, it is necessary to optimize the order of the exploratory points, and consider various safety features, such as terrain hazards, illumination condition, and communication visibility to the earth. This paper presents a method to obtain optimal path in consideration of the remaining charge of the rover, according to the prospected mission in an environment with time-varying safety features, such as in lunar polar region. We demonstrated the effectiveness of the proposed method in numerical simulations.

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Calibration Method for Array Antenna Considering Mutual Coupling of Elements in Satellite Communications

Hiroyuki Tsuji, Yuma Abe, Tomotada Kondo, Yuiko Kikuchi, Shuichi Adachi

2019 22nd International Symposium on Wireless Personal Multimedia Communications (WPMC) (International Symposium on Wireless Personal Multimedia Communications, WPMC) 2019-November 2019.11

ISSN 13476890

This paper proposes a calibration method for array antennas which includes the mutual coupling between antenna elements. Conventional methods such as the rotating element electric field vector (REV) method for the elements of array antennas do not account for the mutual coupling between elements. When an antenna calibration is not performed adequately, the radiation intensity of the radio waves in the undesired direction increases, causing interference with other satellites which are not intended. In order to overcome this drawback, a model of an array antenna including a coupling between antenna elements is constructed. Using this model, the estimation problem of the effect of the mutual coupling is formulated as formulation problem. Finally, a calibration method based on the solution of the optimization problem is derived.

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State feedback synthesis for discrete-time linear systems with stochastic parameters guaranteeing deterministic H<inf>2</inf> performance and stochastic stability

Niwa K., Hattaha K., Sato M., Adachi S.

IFAC-PapersOnLine (IFAC-PapersOnLine) 52 ( 16 ) 664 - 669 2019.09

In this paper, we propose a design method of state feedback controllers for discrete-time linear systems whose state-space matrices contain stochastic parameters. For such systems, if the parameters fluctuate according to the normal distribution, it is impossible to strictly guarantee the “conventional deterministic control performance” due to the unlimited parameter variations. Then, in our problem setup, we consider incorporating the “stochastic stability” into the conventional deterministic H2 performance. We derive a design condition on state feedback controllers which achieve deterministic H2 performance and stochastic stability simultaneously in terms of linear matrix inequalities (LMIs) via extended LMI. The effectiveness of the proposed method is illustrated through a numerical example.

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Gated recurrent unit の局所安定化による勾配爆発の抑制

金井関利, 藤原靖宏, 岩村相哲, 足立修一

電子情報通信学会和文論文誌 D J102-D ( 8 ) 530 - 541 2019.08

Research paper (scientific journal), Joint Work

出力追従制御を応用したトランスオーラル再生制御器設計における制約緩和

松井健太郎, 伊藤敦郎, 森翔平, 井上正樹, 足立修一

日本音響学会誌 75 ( 7 ) 374 - 383 2019.07

Research paper (scientific journal), Joint Work

不確かさをもつターボチャージシステムの可到達解析と安全性検証法

八田羽謙一, 橋本和宗, 井上正樹, 足立修一, 上野将樹, 堤優二郎, 山田雄輝, 豊嶋弘和

自動車技術会論文集 50 ( 3 ) 957 - 962 2019.05

Research paper (scientific journal), Joint Work

State estimation for multiple clocks under anomalies using ℓ<inf>1</inf>-norm optimization

Hirano M, Hashimoto K, Nakagawa F, Ido T, Hanado Y, Adachi S

Metrologia (Metrologia) 56 ( 2 ) 2019.03

ISSN 00261394

© 2019 BIPM & IOP Publishing Ltd. We investigate an estimation strategy for multiple clock systems, which is in particular resilient against clock anomalies. The clock anomalies, including frequency or phase jumps, can potentially degrade the estimation performance for multiple clock systems. While the conventional Kalman filter is known as one of the powerful methods for the estimation problem of multiple clock systems, we will show that it is vulnerable to the effects of clock anomalies. In this paper, we overcome this issue by employing an alternative approach to the Kalman filter, which is based on solving the ℓ1-norm optimization problem. The estimation method employs a multiple clock model that includes only phase states. Nevertheless, the approach is shown to have more resilience against clock anomalies than the Kalman filter, because the deviation of the state from the apriori estimate is evaluated based on the ℓ1-norm instead of the ℓ2-norm. Moreover, the approach is shown to be competitive with many reset algorithms, since it does neighter require special stability assumptions about the reference clock, nor require any threshold for detecting the anomalies. The usefulness of the proposed method is validated through several numerical examples using actual clock data.

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State-of-Charge Estimation of Rechargeable Batteries guaranteed Finite-Time Estimation Error Convergence

Hattaha K., Ono T., Sasaki R., Osamura K., Adachi S.

Proceedings of 2019 SICE International Symposium on Control Systems, SICE ISCS 2019 (Proceedings of 2019 SICE International Symposium on Control Systems, SICE ISCS 2019) 72 - 77 2019.03

ISSN 9784907764623

© 2019 The Society of Instrument and Control Engineers - SICE. We propose a model-based state-of-charge (SOC) estimation method for rechargeable batteries which guarantees finite-time estimation error convergence. One of the most common approaches for the SOC estimation based on equivalent circuit model is to utilize the Kalman filter. The method has an asymptotic convergence property. From the practical standpoint, however, an estimation method that guarantees a finite-time estimation error convergence is desired. To this end, we employ the impulsive observer which achieves the finite-time estimation error convergence with the exact model. Furthermore, we analize the bounds of estimation errors in the case that the model used in the impulsive observer has errors. Finally, the effectiveness of the proposed method is illustrated through numerical experiments.

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Energy-aware networked control systems under temporal logic specifications

Hashimoto K., Adachi S., Dimarogonas D.

Proceedings of the IEEE Conference on Decision and Control (Proceedings of the IEEE Conference on Decision and Control) 2018-December 132 - 139 2019.01

ISSN 9781538613955

© 2018 IEEE. In recent years, event and self-triggered control have been proposed as energy-aware control strategies to expand the life-time of battery powered devices in Networked Control Systems (NCSs). In contrast to the previous works in which their control objective is to achieve stability, this paper presents a novel energy-aware control scheme for achieving high level specifications, or more specifically, temporal logic specifications. Inspired by the standard hierarchical strategy that has been proposed in the field of formal control synthesis paradigm, we propose a new abstraction procedure for jointly synthesizing control and communication strategies, such that the communication reduction in NCSs and the satisfaction of the temporal logic specifications are guaranteed. The benefits of the proposal are illustrated through a numerical example.

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Calibration method for array antenna considering mutual coupling in mobile satellite communications

Tsuji H., Abe Y., Kondo T., Kikuchi Y., Adachi S.

IET Conference Publications (IET Conference Publications) 2019 ( CP774 ) 2019

In this chapter, we propose a calibration method for an array antenna, which includes electromagnetic coupling between antenna elements. Conventional methods such as the rotating element electric field vector (REV) method for elements of an array antenna do not take into account the electromagnetic coupling between elements. If the antenna calibration is not properly performed, the radiation pattern of the radio waves in the undesired directions will increase and interfere with the other satellites that are not intended. To overcome this drawback, a model of an array antenna including the mutual coupling between antenna elements has been constructed. Using this model, the estimation problem of the effect of the mutual coupling is formulated as a formulation problem. Finally, a calibration method based on the solution of the optimization problem is derived and shows the effectiveness of the method through some numerical examples.

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Frequency Resource Management Based on Model Predictive Control for Satellite Communications System

Yuma Abe, Hiroyuki Tsuji, Amane Miura, and Shuichi Adachi

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences) E101-A ( 12 ) 2434 - 2445 2018.12

Research paper (scientific journal), Joint Work, Accepted, ISSN 09168508

Copyright © 2018 The Institute of Electronics, Information and Communication Engineers. We propose an approach to allocate bandwidth for a satellite communications (SATCOM) system that includes the recent highthroughput satellite (HTS) with frequency flexibility. To efficiently operate the system, we manage the limited bandwidth resources available for SATCOM by employing a control method that allows the allocated bandwidths to exceed the communication demand of user terminals per HTS beam. To this end, we consider bandwidth allocation for SATCOM as an optimal control problem. Then, assuming that the model of communication requests is available, we propose an optimal control method by combining model predictive control and sparse optimization. The resulting control method enables the efficient use of the limited bandwidth and reduces the bandwidth loss and number of control actions for the HTS compared to a setup with conventional frequency allocation and no frequency flexibility. Furthermore, the proposed method allows to allocate bandwidth depending on various control objectives and beam priorities by tuning the corresponding weighting matrices. These findings were verified through numerical simulations by using a simple time variation model of the communication requests and predicted aircraft communication demand obtained from the analysis of actual flight tracking data.

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Frequency Resource Allocation for Satellite Communications System Based on Model Predictive Control and Its Application to Frequency Bandwidth Allocation for Aircraft

Abe Y., Tsuji H., Miura A., Adachi S.

2018 IEEE Conference on Control Technology and Applications, CCTA 2018 (2018 IEEE Conference on Control Technology and Applications, CCTA 2018) 165 - 170 2018.10

ISSN 9781538676981

© 2018 IEEE. In this paper, we propose a frequency bandwidth allocation method for satellite communications (SATCOM) based on the Model Predictive Control (MPC) and a sparse optimization method. To utilize limited frequency bandwidth resources of SATCOM efficiently, control strategies for SATCOM system are studied. We treat the frequency bandwidth allocation problem for SATCOM as an optimal control problem. Then, based on the assumption that a time variation model of communication requests is obtained, we propose an optimal control method based on the MPC and the sparse optimization. By utilizing the proposed method, the limited frequency bandwidth is utilized efficiently. We verify the effectiveness of the proposed method in a numerical simulation by using actual data of aircraft.

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Observability Analysis for Simultaneous State and Physical Parameters Estimation of Rechargeable Batteries

Sasaki R., Kawaguchi T., Hattaha K., Inoue M., Adachi S.

2018 IEEE Conference on Control Technology and Applications, CCTA 2018 (2018 IEEE Conference on Control Technology and Applications, CCTA 2018) 1409 - 1414 2018.10

ISSN 9781538676981

© 2018 IEEE. In this paper, we address simultaneous estimation problems (SEPs) of state and physical parameters of rechargeable batteries. In general, the problems are transformed to state estimation of an augmented system whose state includes the parameters of the original system. Then, the SEPs are commonly solved by estimating the state of the augmented system. As a drawback of the solution, the simultaneous estimation fails for some types of the input currents. In this paper, we attempt to find input current conditions such that the SEPs are theoretically solved, through observability analysis of the augmented system.

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Identification of Decentralized System with Common Parameters

Takeuchi M., Kawaguchi T., Inoue M., Naruoka M., Adachi S.

2018 IEEE Conference on Control Technology and Applications, CCTA 2018 (2018 IEEE Conference on Control Technology and Applications, CCTA 2018) 1508 - 1513 2018.10

ISSN 9781538676981

© 2018 IEEE. This paper addresses a system identification problem for multiple isolated systems whose parameters are partially identical. An approach to the problem is a centralized identification; a single estimator collects all the input-output data from all of the systems to estimate their parameters at once. However, the approach can be practically infeasible when it is applied to a large number of systems due to the limitation of computational and communication resources. To solve the issue, we propose a method of a networked identification composed of two stages: 1) Multiple estimators collect the data from their own target systems to independently derive temporary estimates of their parameters and a covariance matrix of the estimates. 2) Then, with communicating the temporary estimates and the covariance matrix, they update their estimates. We also show the optimality of the proposed networked identification method with respect to the modeling accuracy, which is equivalently achieved by the centralized identification. Finally, we show the effectiveness of the proposed method in a numerical simulation.

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Aperiodic Sampled-Data Control via Explicit Transmission Mapping: A Set Invariance Approach

Kazumune Hashimoto, Shuichi Adachi, and Dimos V. Dimarogonas

IEEE Transactions on Automatic Control (IEEE Transactions on Automatic Control) 63 ( 10 ) 3523 - 3530 2018.10

Research paper (scientific journal), Joint Work, Accepted, ISSN 00189286

© 1963-2012 IEEE. Event-triggered and self-triggered control have been proposed in recent years as promising control strategies to reduce communication resources in networked control systems (NCSs). Based on the notion of set-invariance theory, this note presents new self-triggered control strategies for linear discrete-time systems subject to input and state constraints. The proposed schemes not only achieve communication reduction for NCSs, but also ensure both asymptotic stability of the origin and constraint satisfactions. A numerical simulation example validates the effectiveness of the proposed approaches.

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Model Matching Control for Binaural Reproduction Over Loudspeakers

Shohei Mori, Masaki Inoue, Kentaro Matsui, and Shuichi Adachi

SICE Journal of Control, Measurement, and System Integration 11 ( 3 ) 249 - 255 2018.05

Research paper (scientific journal), Joint Work, Accepted

Robust safety controller synthesis using tubes

Hashimoto K., Adachi S., Dimarogonas D.

2017 IEEE 56th Annual Conference on Decision and Control, CDC 2017 (2017 IEEE 56th Annual Conference on Decision and Control, CDC 2017) 2018-January 535 - 541 2018.01

ISSN 9781509028733

© 2017 IEEE. In this paper, we investigate the reachability analysis and safety controller synthesis problem for linear discrete-Time systems under additive bounded disturbances. We consider the following problem; design a state feedback controller such that any state trajectories starting from an initial set can be robustly controlled towards a target one in finite time, while at the same time avoiding any prohibited regions. One of the potential disadvantages of existing reachability algorithms when external disturbances are taken into account, may be that the solution to guarantee reachability becomes conservative. Motivated by this, this paper provides a new controller synthesis framework based on the notion of tube-based control strategy, in which a suitable sequence of polytopes is generated according to a convex feasibility problem. An illustrative simulation validates the effectiveness of our proposed method.

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Difference-based Identification Method for Systems with Rate-independent Hysteresis and Its Application to Rechargeable Battery

Kawaguchi T, Maruta I, Osamura K, Adachi S

IFAC-PapersOnLine (IFAC-PapersOnLine) 51 ( 15 ) 150 - 155 2018.01

© 2018 In this paper, we consider identification of a linear system connected in parallel with the rate-independent hysteresis. Since the parallel system provides only the combined output of the two systems, it is required to extract the signal related to the target system from the observed data to identify the systems separately. In order to achieve this, we propose a system identification method, in which the identification experiment is performed twice with appropriately designed input signals. The inputs make the responses of the hysteresis identical in the two experiments, therefore the difference of the two observed outputs is related to only the target linear system. Then, the linear system is identified using the difference. The proposed method is applied to a rechargeable battery, whose output originates from the nonlinear and the linear elements: open circuit voltage with hysteresis and overpotential. The effectiveness of the proposed method is illustrated through a numerical simulation of the rechargeable battery.

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Recursive Identification of Fractional Time-Delay Systems Using Discrete-Time Model

Higo T, Kawaguchi T, Itamoto M, Adachi S

IFAC-PapersOnLine (IFAC-PapersOnLine) 51 ( 15 ) 939 - 944 2018.01

© 2018 In this paper, a recursive identification method for fractional time-delay systems using a discrete-time model is proposed. The fractional time delay is a non-integer multiple of the sampling period for the discrete-time system. We describe the discretization of the fractional time-delay systems and propose a new formulation for system identification. Single-input, single-output systems are transformed to two-input, single-output systems: one transfer function represents system dynamics and the other represents the influence of the time delay. Then, we propose a new recursive identification method for fractional time-delay systems. Finally we verify the effectiveness of the proposed method through numerical examples.

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SigsofTmax: Reanalysis of the softmax bottleneck

Kanai S, Yamanaka Y, Fujiwara Y, Adachi S

Advances in Neural Information Processing Systems (Advances in Neural Information Processing Systems) 2018-December 286 - 296 2018

ISSN 10495258

© 2018 Curran Associates Inc..All rights reserved. Softmax is an output activation function for modeling categorical probability distributions in many applications of deep learning. However, a recent study revealed that softmax can be a bottleneck of representational capacity of neural networks in language modeling (the softmax bottleneck). In this paper, we propose an output activation function for breaking the softmax bottleneck without additional parameters. We re-analyze the softmax bottleneck from the perspective of the output set of log-softmax and identify the cause of the softmax bottleneck. On the basis of this analysis, we propose sigsoftmax, which is composed of a multiplication of an exponential function and sigmoid function. Sigsoftmax can break the softmax bottleneck. The experiments on language modeling demonstrate that sigsoftmax and mixture of sigsoftmax outperform softmax and mixture of softmax, respectively.

Design and implementation of a binaural reproduction controller applying output tracking control

Ito A, Matsui K, Ono K, Hattori H, Suenaga T, Iwauchi K, Adachi S

145th Audio Engineering Society International Convention, AES 2018 (145th Audio Engineering Society International Convention, AES 2018) 2018

© 2018 KASHYAP. We have been studying a design method for a controller for binaural reproduction with loudspeakers. The gain of the controller amplifies errors due to external disturbances and system perturbations, and this leads to deterioration of the sound quality. Therefore, the gain should be suppressed to as low as possible. For this purpose, we formulate the design of the controller as a minimization problem of the gain, in which the H∞ norm of the controller is adopted as a measure of the gain. In this article, we also introduce a binaural reproduction system as an implementation example. This system virtually reproduces multichannel audio such as 22.2 multichannel audio using line array loudspeakers.

ロバストゲインスケジュールオブザーバによるヒステリシス特性をもつ二次電池の充電率推定

ADACHI Shuichi

計測自動制御学会論文集 Vol.53 ( No.11 ) 574 - 582 2017.11

Research paper (scientific journal), Joint Work

サンプリング周期の非整数倍のむだ時間をもつシステムの同定法

ADACHI Shuichi

計測自動制御学会論文集 Vol.53 ( No.8 ) 490 - 492 2017.08

Research paper (scientific journal), Joint Work

出力追従制御を応用したトランスオーラル再生制御器の設計

ADACHI Shuichi

日本音響学会誌 Vol.73 ( No.5 ) 281 - 290 2017.05

Research paper (scientific journal), Joint Work

State Estimation under Lebesgue Sampling and an Approach to Event-Triggered Control

ADACHI Shuichi,Takahiro Kawaguchi, Masaki Inoue

SICE Journal of Control, Measurement, and System Integration Vol.10 ( No.3 ) 259 - 265 2017.05

Research paper (scientific journal), Joint Work

Event-Triggered Intermittent Sampling for Nonlinear Model Predictive Control

ADACHI Shuichi,Kazumune Hashimoto,Dimos V. Dimarogonas

Automatica Vol.81 148 - 155 2017.04

Research paper (scientific journal), Joint Work

ルベーグサンプリングのもとでのシステム同定

ADACHI Shuichi

計測自動制御学会論文集 Vol.53 ( No.3 ) 236 - 243 2017.03

Research paper (scientific journal), Joint Work

Self-triggered Model Predictive Control for Nonlinear Input-Affine Dynamical Systems via Adaptive Control Samples Selection

ADACHI Shuichi,Kazumune Hashimoto,Dimos V. Dimarogonas

IEEE Transactions on Automatic Control Vol.62 ( No.1 ) 177 - 189 2017.01

Research paper (scientific journal), Joint Work

Low-Complexity Simultaneous Estimation of Head-Related Transfer Functions by Prediction Error Method

ADACHI Shuichi,KANAI Sekitoshi,SUGAYA MahoMATSUI Kentaro

Journal of the Audio Engineering Society Vol.64 ( No.11 ) 895 - 904 2016.12

Research paper (scientific journal), Joint Work

自動車エンジン燃料系の不確かさの評価付きモデリングとその制御問題への応用

ADACHI Shuichi

電気学会論文誌D(産業応用部門誌） Vol.136 ( No.11 ) 884 - 890 2016.11

Research paper (scientific journal), Joint Work

巡回シフトM系列を用いた多入力1出力系のシステム同定

ADACHI Shuichi

計測自動制御学会論文集 Vol.52 ( No.9 ) 467 - 473 2016.09

Research paper (scientific journal), Joint Work

非線形モデルに基づくロバストフィルタを用いたジェットエンジンのヘルスモニタリング

ADACHI Shuichi

システム制御情報学会論文集 Vol.29 ( No.8 ) 337 - 245 2016.08

Research paper (scientific journal), Joint Work

ガソリンエンジンのすすの準定常計測とモデリング

ADACHI Shuichi

計測自動制御学会論文集 Vol.47 ( No.3 ) 665 - 671 2016.07

Research paper (scientific journal), Joint Work

Box-Cox変換を用いた風力発電出力の非線形モデリングと超短時間予測

ADACHI Shuichi

計測自動制御学会論文集 Vol.52 ( No.5 ) 299 - 301 2016.05

Research paper (scientific journal), Joint Work

Self-triggered Model Predictive Control for Nonlinear Input-Affine Dynamical Systems via Adaptive Control Samples Selection

ADACHI Shuichi,HASHIMOTO Kazumune,DIMOS V,Dimarogonas

IEEE Transactions on Automatic Control Vol.62 ( No.1 ) 177 - 189 2016.03

Research paper (scientific journal), Joint Work

プリ同定結果を陽に取り入れた２段階システム同定法

ADACHI Shuichi

システム制御情報学会論文誌 Vol.29 ( No.2 ) 101 - 103 2016.02

Research paper (scientific journal), Joint Work

周波数領域における事前情報を考慮した部分空間同定法

ADACHI Shuichi

計測自動制御学会論文集 Vol.152 ( No.1 ) 11 - 18 2016.01

Research paper (scientific journal), Joint Work

22.2マルチチャンネル音響の枠組スピーカによるバイノーラル再生法の開発

ADACHI Shuichi

映像情報メディア学会誌 Vol.70 ( No.1 ) J37 - J46 2016.01

Research paper (scientific journal), Joint Work

モデル予測制御を用いた複写機におけるトナー補給制御システムの設計

ADACHI Shuichi

システム制御情報学会論文誌 Vol.28 ( No.11 ) 443 - 451 2015.11

Research paper (scientific journal), Joint Work

時間領域におけるシステム同定結果の評価指標について

ADACHI Shuichi

計測自動制御学会論文集 Vol.51 ( No.10 ) 736 - 743 2015.10

Research paper (scientific journal), Joint Work

フィッシャー情報量に基づくジェットエンジンの最適センサ配置決定法

ADACHI Shuichi

計測自動制御学会論文集 Vol.51 ( No.9 ) 634 - 644 2015.09

Research paper (scientific journal), Joint Work

入力設計の改良による頭部伝達関数の多方向同時推定の高精度化

ADACHI Shuichi

日本音響学会誌 Vol.71 ( No.7 ) 316 - 318 2015.07

Research paper (scientific journal), Joint Work

設計レス非線形状態オブザーバに基づく弾性関節ロボットアームの振動抑制制御

ADACHI Shuichi

電気学会論文誌(D) Vol.135 ( No.5 ) 571 - 581 2015.05

Research paper (scientific journal), Joint Work

Low-Order Modeling of Head-Related Transfer Function for Binaural Reproduction

ADACHI Shuichi SUGAYA Maho MATSUI Kentaro NAKAYAMA Yasushige

SICE Journal of Control, Measurement, and System Integration Vol.8 ( No.2 ) 108 - 113 2015.03

Research paper (scientific journal), Joint Work

HEV/EV 向けリチウムイオン電池の充電率とパラメータの同時推定

ADACHI Shuichi

自動車技術会論文集 Vol.46 ( No.1 ) 97 - 102 2015.01

Research paper (scientific journal), Joint Work

Distributed aperiodic model predictive control for multi-agent systems

ADACHI Shuichi HASHIMOTO Kazumune Dimos Dimarogonas

IET Control Theory & Applications (INST ENGINEERING TECHNOLOGY-IET) Vol.9 ( No.1 ) 10 - 20 2015.01

Research paper (scientific journal), ISSN 1751-8644

In this study, the authors propose an aperiodic formulation of model predictive control for distributed agents with additive bounded disturbances. In the proposed method, each agent solves an optimal control problem only when certain control performances cannot be guaranteed according to certain triggering rules. This could lead to the reduction of energy consumption and the alleviation of over usage of communication resources. The triggering rules are derived for both event-triggered and self-triggered formulation. The authors proposed method is also verified through a simulation example.

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Long-range navigation for resource-constrained planetary rovers using angle of arrival

ADACHI Shuichi,ISHIDA Takayuki,INOUE Hiroka,MOGI Wataru,TAKAHASHI Masaki,ONO Masahiro

Mechanical Engineering Journal Vol.2 ( No.6 ) 14 2015

Research paper (scientific journal)

Binaural Reproduction of 22.2 Multichannel Sound with Flat Panel Display-Integrated Loudspeaker Frame for Home Use

ADACHI Shuichi MATSUI Kentaro Oishi Satoshi SUGIMOTO Takehiro Oode Satoshi NAKAYAMA Yasushige OKUBO Hiroyuki SATO Hiroshi MIZUNO Koji MORITA Yuichi

映像情報メディア学会誌 Vol.68 ( No.10 ) J447 - J456 2014.10

Research paper (scientific journal), Joint Work

オンボードカメラによる火星飛行機の位置推定アルゴリズム

ADACHI Shuichi

日本機械学会論文集 Vol.80 ( No.814 ) 2014.06

Research paper (scientific journal), Joint Work

消音帯域を考慮した可変摂動型周波数領域同時摂動法によるアクティブノイズコントロールシステムの設計

ADACHI Shuichi

計測自動制御学会論文集 Vol.150 ( No.5 ) 395 - 403 2014.05

Research paper (scientific journal), Joint Work

積分器を有するシステムの同定について

ADACHI Shuichi

計測自動制御学会論文集 Vol.150 ( No.4 ) 342 - 347 2014.04

Research paper (scientific journal), Joint Work

SOC Estimation of HEV/EV Battery Using Series Kalman Filter

ADACHI Shuichi Baba Atsushi

Electrical Engineering in Japan (WILEY-BLACKWELL) Vol.187 ( No.2 ) 53 - 62 2014.04

Research paper (scientific journal), Joint Work, ISSN 0424-7760

This paper proposes a method of accurately estimating the state of charge(SOC) of rechargeable batteries in high fuel efficiency vehicles, such as hybrid electric vehicles(HEVs) and electric vehicles(EVs). Despite the importance of accurately estimating the SOC of batteries to achieve maximum efficiency and safety, no method thus far has been able to do so. This paper focuses on the simplification of a battery model, estimation of time-varying battery parameters, and estimation of SOC in the presence of measurement noise. To address these three issues, a model-based approach that uses a cascaded combination of two Kalman filters, series Kalman filters, is proposed and implemented. This approach is verified by performing a series of simulations in an HEV operating environment. The ultimate goal is to design a state estimator capable of accurately estimating the state of any kind of batteries under every possible user condition. (c) 2014 Wiley Periodicals, Inc. Electr Eng Jpn, 187(2): 53-62, 2014; Published online in Wiley Online Library (). DOI 10.1002/eej.22511

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確率的モデル予測制御を用いた分散最適電力配分とプライシング

ADACHI Shuichi

計測自動制御学会論文集 Vol.150 ( No.3 ) 227 - 235 2014.03

Research paper (scientific journal), Joint Work

対数化 UKF を用いたリチウムイオン電池の状態とパラメータの同時推定

ADACHI Shuichi

電気学会論文誌（D） Vol.133 ( No.12 ) 1139 - 1147 2013.12

Research paper (conference, symposium, etc.), Joint Work

拡散現象を考慮した電気自動車用二次電池の連続時間システム同定

ADACHI Shuichi

計測自動制御学会論文集 Vol.49 ( No.7 ) 670-677 2013.07

Research paper (conference, symposium, etc.), Joint Work

システム同定理論を用いた頭部伝達関数の三次元空間多方向同時推定

ADACHI Shuichi

日本音響学会誌 Vol.69 ( No.7 ) 321-330 2013.07

Research paper (scientific journal), Joint Work

L1 最適化を用いた循環構造を有するシステムのモデリング

ADACHI Shuichi

計測自動制御学会論文集 Vol.49 ( No.6 ) 655-657 2013.06

Research paper (conference, symposium, etc.), Joint Work

局所線形PLS法に基づくシステム同定法

ADACHI Shuichi

計測自動制御学会論文集 Vol.49 ( No.3 ) 378-385 2013.03

Research paper (conference, symposium, etc.), Joint Work

Automatic Valve-Rejection Algorithm for Cardiac Doppler Ultrasound Systems

ADACHI Shuichi Tatsuro Baba Masatsugu Taiko

ISRN Biomedical Imaging 2013 2013.03

Research paper (scientific journal), Joint Work

物理パラメータ推定に基づくシリアル2リンク2慣性系の振動抑制制御

ADACHI Shuichi

電気学会論文誌（D） Vol.133 ( No.1 ) 94-104 2013.01

Research paper (scientific journal), Joint Work

シリーズカルマンフィルタを用いた二次電池の充電率推定

ADACHI Shuichi

電気学会論文誌(D) Vol.132 ( No.9 ) 907 - 914 2012.09

Research paper (scientific journal), Joint Work

最小二乗法による多入力システム同定のための同定入力の生成法

ADACHI Shuichi

計測自動制御学会論文集 Vol.47 ( No.6 ) 291 - 293 2011.06

Research paper (conference, symposium, etc.), Joint Work

最小二乗法に基づくタンパク質ネットワークの推定とロバストネス解析

ADACHI Shuichi

計測自動制御学会論文集 Vol.46 ( No.11 ) 723 - 729 2010.11

Research paper (scientific journal), Joint Work

ディーゼルエンジン吸気システムのモデリングとモデル予測制御による制御系設計

ADACHI Shuichi

計測自動制御学会論文集 Vol.46 ( No.8 ) 456 - 462 2010.08

Research paper (scientific journal), Joint Work

鋼材加熱炉の装入スケジューリングと燃焼制御の同時最適化

ADACHI Shuichi

鉄と鋼 Vol.96 ( No.7 ) 434 - 442 2010.07

Research paper (scientific journal), Joint Work

A hybrid modeling method for mechanical sysytems

ADACHI Shuichi,Mitsuo Hirata, Yohei Hashimoto, Sakae Noguchi

Mechatronics Vol.20 ( No.1 ) 59 - 66 2010.02

Research paper (scientific journal), Joint Work

A hybrid modeling method for mechanical systems

Mitsuo Hirata, Yohei Hashimoto, Sakae Noguchi, Shuichi Adachi

MECHATRONICS (PERGAMON-ELSEVIER SCIENCE LTD) 20 ( 1 ) 59 - 66 2010.02

ISSN 0957-4158

In this paper, a system identification method for hybrid systems switched by the magnitude of velocity and displacement is proposed. First, it is shown that the regression vector space of a mechanical system switched by the magnitude of velocity cannot be separated by a hyperplane. Then a method based on support vector machines with a polynomial kernel is proposed. The effectiveness of the proposed method is shown by simulations and experiments. (C) 2009 Elsevier Ltd. All rights reserved.

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シリアル2リンク2慣性系の非干渉化同定－閉ループ要素の導入と同定入力の振幅設定変更に対する精度評価－

ADACHI Shuichi

電気学会論文誌 D Vol.129 ( No.12 ) 1169 - 1177 2009.12

Research paper (scientific journal), Joint Work

An Engine Control Systems Design for Low-Emission Vehicles by Generalized Predictive Control Based on Identified Model

Seiji Hashimoto, Hiroyuki Okuda, Yasushi Okada, Shuichi Adachi, Shinji Niwa, Mitsunobu Kajitani

ELECTRICAL ENGINEERING IN JAPAN (SCRIPTA TECHNICA-JOHN WILEY & SONS) 169 ( 3 ) 47 - 55 2009.11

ISSN 0424-7760

Conservation of the environment has become critical to the automotive industry. Recently, requirements for on-board diagnostic and engine control systems have been strictly enforced. In the present paper, in order to meet the requirements for low-emission vehicles, a novel method for construction of the air-fuel ratio (A/F) control system is proposed. The method of construction of the system is divided into two steps.
The first step is to design the A/F control system for the engine based on an open loop design. The second step is to design the A/F control system for the catalyst system. The design method is based on generalized predictive control in order to assure robustness to open loop control as well as model uncertainty. The effectiveness of the proposed A/F control system is verified through experiments using full-scale Products. (C) 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 169(3): 47-55, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20907

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Multivariable Air-Path Manegement For A Clean Diesel Engine Using Model Predictive Control

ADACHI Shuichi,(/)-RMitsuhiro Iwadare,(/)-RMasaki Ueno

SAE International Journal of Engines Vol.2 ( No.1 ) 764 - 773 2009.10

Research paper (scientific journal), Single Work

UKFによる未知非線形アクチュエータにより駆動される非線形システムの同時推定

ADACHI Shuichi

計測自動制御学会論文集 Vol.45 ( No.5 ) 286 - 288 2009.05

Research paper (scientific journal), Joint Work

多様な専門技術を結集する全体設計－モデリング手法の活用がカギ

ADACHI Shuichi

モービル・パワー・エレクトロニクス入門 (Tech-On，日経BP社) 2009

Research paper (other academic), Joint Work

An engine control systems for low-emission vehicles by generalized predictive control based on identified model

ADACHI Shuichi,#HSeiji Hashimoto#H,#HHiroyuki Okuda#H,#HYasushi Okada#H,#HShinji Niwa#H, #HMitsunobu Kajitani#H

Electrical Engineering in Japan Vol.169 ( No.3 ) 47 - 55 2009

Research paper (scientific journal), Single Work

Multi-variable air-path management for a clean diesel engine using model predictive control

Mitsuhiro Iwadare, Masaki Ueno, Shuichi Adachi

SAE International Journal of Engines 2 ( 1 ) 764 - 773 2009

ISSN 1946-3936

Recently, emission regulations have been strict in many countries, and it is very difficult technical issue to reduce emissions of diesel cars. In order to reduce the emissions, various combustion technologies such as Massive EGR, PCCI, Rich combustion, etc. have been researched. The combustion technologies require precise control of the states of in-cylinder gas (air mass flow, EGR rate etc.). However, a conventional controller such as PID controller could not provide sufficient control accuracy of the states of in-cylinder gas because the air-pass system controlled by an EGR valve, a throttle valve, a variable nozzle turbo, etc. is a multi-input, multi-output (MIMO) coupled system. Model predictive control (MPC) is well known as the advanced MIMO control method for industrial process. Generally, the sampling period of industrial process is rather long so there is enough time to carry out the optimization calculation for MPC. However, due to the progress of the computer in the last decade and improvement of the optimization algorithm, the MPC can be applied to 'fast' process such as mechanical systems. The air-pass management system for the diesel engine is assumed a two-input, two-output system in this research. The inputs of the system are the throttle valve and the EGR valve, and the outputs air mass flow and EGR rate. Consequently, MPC was applied to air-pass management system and was modified by adding the disturbance observer to eliminate steady-state error and the compensator for nonlinear characteristics of actuators. The performance of the proposed control system was examined by using an actual testing vehicle. From the experiments, it was shown that an accurate decoupled control of two outputs, i.e. air mass flow and EGR rate, was accomplished by the proposed MPC control. © 2009 SAE International.

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シリアル2リンク2慣性系の非干渉化同定と物理パラメータ推定

ADACHI Shuichi

電気学会論文誌D Vol.128 ( No.5 ) 669-677 2008

Research paper (scientific journal), Joint Work

一般化予測制御に基づくエンジン制御系の二段階設計法

ADACHI Shuichi

電気学会論文誌C Vol.128 ( No.3 ) 251-258 2008

Research paper (scientific journal), Joint Work

速度や変位の絶対値で切り替わるメカニカルハイブリッドシステムの同定法

ADACHI Shuichi

電気学会論文誌C Vol.128 ( No.5 ) 781-787 2008

Research paper (scientific journal), Joint Work

システム同定支援装置のインターフェースの開発

ADACHI Shuichi TAKANASHI Hiroyuki

電気学会論文誌D Vol.127 ( No.4 ) 412-419 2007

Research paper (scientific journal), Joint Work

可変忘却要素を用いたオンライン同定法による自動車排気ガス用触媒のモデリングと劣化診断

ADACHI Shuichi OKADA Yasushi OKUDA Hiroyuki NIWA Shinji KAJITANI Mitsunobu HASHIMOTO Seiji

電気学会論文誌D Vol.126 ( No.12 ) 1637-1644 2006

Research paper (scientific journal), Joint Work

非線形性をもつセンサを用いたシステム同定

ADACHI Shuichi OKADA Yasushi JanM.Maciejowski

計測自動制御学会論文集 Vol.41 ( No.2 ) 142-148 2005.02

Research paper (conference, symposium, etc.), Joint Work

マルチデシメーション同定法を用いたロバスト制振制御のための柔軟構造物のモデリング手法

ADACHI Shuichi HASHIMOTO Seiji ISHIKAWA Takeo FUNADO Hiroshi KAMIYAMA Kenzo ISOJIMA Akihiro

電気学会論文誌(D) Vol.123-D ( No.5 ) 471-478 2004.05

Research paper (scientific journal), Joint Work

ndependent modal control system design via modal matrix estimation based on subspace method

ADACHI Shuichi H.Takanashi S.Wakui

JSME International Journal Series C Vol.46 ( No.3 ) 841-847 2003.09

Research paper (scientific journal), Joint Work

ビジュアルフィードバックによる自動操舵制御系の設計 - ラジコンカーによるシステム同定と制御実験

ADACHI Shuichi　FUJIWARA Yukihiro　YOSHII Masakazu　ARAI Yasuhito

電気学会論文誌(D) Vol.123-D ( No.5 ) 628-633 2003.05

Research paper (scientific journal), Joint Work

不完全な情報下におけるシステム同定 - 画像情報を用いた移動ロボットのシステム同定

ADACHI Shuichi　TAKANASHI Hiroyuki　YAMAGUCHI Toru

電気学会論文誌(D) Vol.123-D ( No.3 ) 308-309 2003.03

Research paper (scientific journal), Joint Work

画像情報を用いて移動ロボットの動特性を同定する方法を提案している。実験より得られたデータは，不等間隔サンプリングデータであり，またアウトライアを含むステップ応答試験データであった。このような不完全な情報下においても有効に動作するような，サポートベクターマシンに基づく同定法を提案し，実験データを通してその有効性を明らかにした。

欠損データ推定に基づく不等間隔サンプリングデータに対するシステム同定法

ADACHI Shuichi　TANJI Masayuki

電気学会論文誌(C) Vol.122-C ( No.8 ) 1383-1384 2002.08

Research paper (scientific journal), Joint Work

自動車車両緒元の不確かさを考慮した自動操縦制御系の設計

ADACHI Shuichi　FUJIWARA Yukihiro　YOSHII Masakazu

電気学会論文誌(D) Vol.122-D ( No.6 ) 652-658 2002.06

Research paper (scientific journal), Joint Work

Modeling, control and experiment of feedback active noise control systems for free sound fields

ADACHI Shuichi H.Sano

JSME International Journal, Series C Vol.45 ( No.2 ) 409-416 2002.06

Research paper (scientific journal), Single Work

自由音場に対するフィードバックアクティブ騒音制御系のシステマティックな設計法を提案している。音場，スピーカ，マイクロフォンなどの物理的な特徴を考慮したグレーボックスモデリング法により制御対象のモデリングを行い，得られたモデルに基づいてロバスト制御系を設計している。提案した設計手順の有効性をアクティブ騒音制御の実験を通して明らかにしている。

A system identification method for linear regression models based on support vector machine

ADACHI Shuichi T.Ogawa R.Konno

Transactions of the Society of Instrument and Control Engineers Vol.37 ( No.12 ) 1189-1191 2001.12

Research paper (scientific journal), Joint Work

Feedback active noise control system based on H∞ control

ADACHI Shuichi M.Ogawa A.Takahashi H.Sano

Acoustic Science and Technology Vol.22 ( No.6 ) 437-438 2001.12

Research paper (scientific journal), Joint Work

Autonomous flight control for a large-scale unmanned helicopter 　- System identification and robust control systems design -

ADACHI Shuichi S.Hashimoto G.Miyamori A.Tan

Transaction of IEE Japan Vol.121-D ( No.12 ) 1278-1283 2001.12

Research paper (scientific journal), Single Work

多変数システム同定結果に基づく除振マウント支持の半導体露光装置の物理パラメータ推定

ADACHI Shuichi TAKANASHI Hiroyuki MAYAMA Takehiko WAKUI Sinji

システム制御情報学会論文誌 Vol.14 ( No.8 ) 418-420 2001.08

Research paper (scientific journal), Single Work

部分空間法による除振マウント支持の半導体露光装置に対する多変数システム同定実験

ADACHI Shuichi TAKANASHI Hiroyuki KATO Hiroaki SHOJI Atsushi MAYAMA Takehiko WAKUI Sinji

システム制御情報学会論文誌 Vol.14 ( No.7 ) 339-346 2001.07

Research paper (scientific journal), Joint Work

正則化とH∞フィルタリングの関係について

ADACHI Shuichi YONETANI Yoshiko SANO Hisashi

計測自動制御学会論文集 Vol.35 ( No.12 ) 1553-1558 1999.12

Research paper (scientific journal), Single Work

逐次最小二乗(RLS)法を正則化法の観点から見直し，正則化を考慮した RLS 法はロバストで，しかも比較的速いパラメータ収束速度が達成できることを数値例とともに明らかにしている。また，正則化法を H∞フィルタリングの立場で考察し，正則化法はill-posed 問題をwell-posed問題に変換するだけでなく，推定アルゴリズムのロバスト化にも役立っていることを明らかにしている。

アクティブ騒音制御のための音響伝達系のモデリングとPIDフィードバック制御系の設計法に関する研究

ADACHI Shuichi　SANO Hisashi　SANOUDO Toru　HIRANO Masayuki

日本機械学会論文集 (C) Vol.65 ( No.637 ) 3599-3605 1999.09

Research paper (conference, symposium, etc.), Joint Work

On-orbit system identification experiments on Engineering Test Satellite-VI

ADACHI Shuichi I.Yamaguchi T.Kida K.Yamada Y.Chida

Control Engineering Practice Vol.7 ( No.7 ) 831-841 1999.07

Research paper (scientific journal), Joint Work

部分空間法を用いたシステム同定結果に基づく２自由度アクティブ騒音制御系の設計に関する研究

ADACHI Shuichi

日本機械学会論文集 (C) Vol.64 ( No.622 ) 1970-1976 1998.06

Research paper (conference, symposium, etc.), Joint Work

２自由度制御系を用いて自動車車室内の騒音を制御するためには，プラントである音響伝達系をモデリングする必要がある。本論文では，プラントをIIR（Infinite Impulse Response) モデルで記述し，部分空間法によって同定する方法を提案している。このとき，IIRモデルの次数を特異値に基づいて決定している。提案した方法を実車実験によって計測された騒音データに対して適用し，その有効性を示している。

ETS-VI on-orbit system identification experiments

ADACHI Shuichi I.Yamaguchi T.Kida K.Komatsu M.Sano T.Sekiguchi S.Ishikawa S.Ichikawa K.Yamada Y.Chida

JSME International Journal, Series C Vol.40 ( No.4 ) 623-629 1997.12

Research paper (scientific journal), Joint Work

ETS-VI 軌道上同定実験データによる予測誤差法と部分空間法の比較

ADACHI Shuichi　NAGATA Hiroshi　YAMAGUCHI Isao　KIDA Takashi　SEKIGUCHI Takeshi

計測自動制御学会論文集 Vol.33 ( No.8 ) 805-811 1997.08

Research paper (conference, symposium, etc.), Joint Work

フィードバック制御に IMC を用いた２自由度アクティブ騒音制御に関する研究

ADACHI Shuichi　MIYAMOTO Shinichi　SANO Hisashi

日本機械学会論文集(C) Vol.63 ( No.608 ) 1208-1213 1997.04

Research paper (conference, symposium, etc.), Joint Work

Application of a least squares lattice algorithm to active noise control for an automobile

ADACHI Shuichi SANO Hisashi KASUYA Hideki

Trans. of the ASME, J. of Dynamic Systems, Measurement, and Control Vol.119 ( No.2 ) 318-320 1997.02

Research paper (scientific journal), Joint Work

ETS-VIによる軌道上同定実験（第2報，ランダム加振）

ADACHI Shuichi　SEKIGUCHI Takeshi　YAMADA Katsuhiko 　YAMAGUCHI Isao　#HSENDA Yuichi/U>

日本機械学会論文集 (C) Vol.62 ( No.603 ) 4190-4197 1996.11

Research paper (conference, symposium, etc.), Joint Work

ETS-VIによる軌道上同定実験（第1報，インパルス加振）

ADACHI Shuichi　YAMAGUCHI Isao　ISHIKAWA Shinichi　SENDA Yuichi　YAMADA Katsuhiko

日本機械学会論文集 (C) Vol.62 ( No.603 ) 4182-4189 1996.03

Research paper (conference, symposium, etc.), Joint Work

確定的な事前情報を考慮したグレーボックスモデリング

ADACHI Shuichi　EDA Tomoaki

計測自動制御学会論文集 Vol.32 ( No.3 ) 417-419 1996.03

Research paper (scientific journal), Joint Work

Simultaneous estimation of vocal tract and voice source parameters based on an ARX model

ADACHI Shuichi,W.Ding, H.Kasuya

IEICE Trans. Information & Systems Vol.E78-D ( No.6 ) 738-743 1995.06

Research paper (scientific journal), Joint Work

Hammersteinモデルを用いた非線形同定に基づく一般化予測制御系の構成法

ADACHI Shuichi　MURAKAMI Hideyuki

システム制御情報学会論文誌 Vol.8 ( No.3 ) 115-121 1995.03

Research paper (scientific journal), Joint Work

連続時間セットメンバーシップ同定法による物理パラメータの不確かさの評価

ADACHI Shuichi　SUNAGA Yoshihiro

計測自動制御学会論文集 Vol.31 ( No.3 ) 334-340 1995.03

Research paper (conference, symposium, etc.), Joint Work

最小２乗法に基づく自動車のアクティブ騒音制御に関する研究

ADACHI Shuichi　SANO Hisashi KASUYA Hideki

日本機械学会論文集 (C) Vol.61 ( No.581 ) 78-84 1995.01

Research paper (conference, symposium, etc.), Joint Work

デシメーションを用いた不確かさの同定法 - 大型柔軟衛星への適用

ADACHI Shuichi　SUNAGA Yoshihiro

計測自動制御学会論文集 Vol.31 ( No.1 ) 8-13 1995.01

Research paper (conference, symposium, etc.), Joint Work

最小２乗ラティスフィルタを用いた自動車のアクティブ騒音制御

ADACHI Shuichi　SANO Hisashi　KASUYA Hideki

計測自動制御学会論文集 Vol.30 ( No.12 ) 1499-1504 1994.12

Research paper (conference, symposium, etc.), Joint Work

自動車のアクティブ騒音制御における音圧予測

ADACHI Shuichi　SANO Hisashi　KASUYA Hideki

システム制御情報学会論文誌 Vol.7 ( No.10 ) 436-437 1994.10

Research paper (scientific journal), Joint Work

アニメーションを用いた制御結果の表示

ADACHI Shuichi

システム制御情報学会論文誌 Vol.7 ( No.7 ) 274-275 1994.07

Research paper (scientific journal), Single Work

折り返し法を用いた大型衛星の姿勢制御

ADACHI Shuichi　TAKAGI Yasuo KIDA Takashi MORI Yasuchika

計測自動制御学会論文集 Vol.27 ( No.9 ) 1018-1024 1991.09

Research paper (conference, symposium, etc.), Joint Work

I-PD制御を用いた大型衛星の姿勢制御系の一設計法

ADACHI Shuichi　SHIGEMASA Takashi　KIDA Takashi

計測自動制御学会論文集 Vol.27 ( No.2 ) 242-244 1991.02

Research paper (conference, symposium, etc.), Joint Work

産業用ロボットのディジタルサーボチューニングシステム

ADACHI Shuichi　OAKI Jyunji

日本ロボット学会誌 Vol.9 ( No.1 ) 55-64 1991.01

Research paper (scientific journal), Joint Work

ロボットアームの周波数応答と物理パラメータの同時同定法

ADACHI Shuichi　OAKI Jyunji

計測自動制御学会論文集 Vol.26 ( No.12 ) 1461-1463 1990.12

Research paper (conference, symposium, etc.), Joint Work

従来，ロボットアームの周波数特性と物理パラメータを同一の同定実験データから求めることは困難だった。周波数特性は高周波帯域までの情報が必要であり，物理パラメータは低周波帯域の情報のみで十分であるという相反する特性のためであった。本論文では，デシメーションを利用することにより，この問題点を解決している。提案法を利用することにより，ロボットの動特性の同定実験を大幅に短縮することが可能になった

大型宇宙構造物の同定実験

ADACHI Shuichi　SHIGEMASA Takashi YAMAGUCHI Isao KIDA Takashi

計測自動制御学会論文集 Vol.26 ( No.11 ) 1275-1282 1990.11

Research paper (conference, symposium, etc.), Joint Work

デシメーションを複数個用いたシステム同定法 - ロボットアームの同定実験への適用

ADACHI Shuichi　OAKI Jyunji　SHIGEMASA Takashi

計測自動制御学会論文集 Vol.26 ( No.9 ) 1029-1035 1990.09

Research paper (conference, symposium, etc.), Joint Work

広周波数帯域に渡って振動モードが多数存在するシステムは，従来の最小二乗法では同定が困難なシステムであるとされていた。本論文では，システムの入出力データに対してデシメーションと呼ばれる信号処理を複数個適用することによって，システムの周波数特性を帯域分割し，それぞれに対して最小二乗法を適用する同定法を提案している。この同定法を柔軟なロボットアームの同定実験に適用し，その有効性を示している。

重み定数の最適化を考慮した最小二乗法によるシステム同定

ADACHI Shuichi　SANO Akira AMAMORI Yasunobu

電子情報通信学会論文誌 (A) J-70A ( No.11 ) 1552-1561 1987.11

Research paper (scientific journal), Joint Work

悪条件を考慮した伝達関数モデルの同定

ADACHI Shuichi　IZUMISAWA Toru SANO Akira

電子情報通信学会論文誌 (A) J-70A ( No.3 ) 410-418 1987.03

Research paper (scientific journal), Joint Work

入力相関行列の悪条件を考慮したインパルス応答の最小２乗推定

ADACHI Shuichi　SANO Akira

計測自動制御学会論文集 Vol.22 ( No.11 ) 1156-1161 1986.11

Research paper (conference, symposium, etc.), Joint Work

線形離散時間システムのインパルス応答を最小二乗法によって同定する問題について考察している。同定入力信号が滑らかな場合，対応する入力相関行列が悪条件になるが，そのとき入力相関行列の対角要素に小さな正数を加えて悪条件を回避する，正則化法を提案し，その効果を固有値分解に基づいて解析している。また，最適な正数の決定法も提案している。

滑らかな入力信号を用いたインパルス応答の同定

ADACHI Shuichi　IBARAGI Masahiro SANO Akira

電子通信学会論文誌 (A) J-68A ( No.10 ) 1061-1068 1985.10

Research paper (scientific journal), Joint Work

重み係数の自動調整を備えた最小二乗適応格子形等化器

ADACHI Shuichi　ISIDA Yasuhiro SANO Akira

電子通信学会論文誌 (A) J68-A, ( No.9 ) 992-995 1985.09

Research paper (scientific journal), Joint Work

ARモデル表現に基づいたディジタル制御系の簡易設計法

ADACHI Shuichi　SANO Akira

計測自動制御学会論文集 Vol.21 ( No.7 ) 671-676 1985.07

Research paper (conference, symposium, etc.), Joint Work

勾配法に基づく逐次同定法と適応符号検出器への適用

ADACHI Shuichi,SANO Akira

電子通信学会論文誌 (A)， J-67A ( No.12 ) 1239-1246 1984.12

Research paper (scientific journal), Joint Work

入出力モデルに基づいた最適予見制御系の設計法

ADACHI Shuichi,SANO Akira

電気学会論文誌 (C) Vol.102-C ( No.10 ) 231-238 1982.10

Research paper (scientific journal), Joint Work

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