IEEE Transactions on Automatic Control

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Perturbation analysis for online control and optimization of stochastic fluid models
IEEE Transactions on Automatic Control - Tập 47 Số 8 - Trang 1234-1248 - 2002
C.G. Cassandras, Y. Wardi, B. Melamed, Gang Sun, C.G. Panayiotou
Uses stochastic fluid models (SFMs) for control and optimization (rather than performance analysis) of communication networks, focusing on problems of buffer control. We derive gradient estimators for packet loss and workload related performance metrics with respect to threshold parameters. These estimators are shown to be unbiased and directly observable from a sample path without any knowledge o...... hiện toàn bộ
#Stochastic processes #Communication system control #Performance analysis #Communication networks #Measurement #Parameter estimation #Communication system traffic control #Computer networks #Computer network management #Environmental management
Finite sample properties of system identification methods
IEEE Transactions on Automatic Control - Tập 47 Số 8 - Trang 1329-1334 - 2002
M.C. Campi, E. Weyer
In this paper we study the quality of system identification models obtained using the standard quadratic prediction error criterion for a general linear model class. The main feature of our results is that they hold true for a finite data sample and they are not asymptotic. The main theorems bound the difference between the expected value of the identification criterion evaluated at the estimated ...... hiện toàn bộ
#System identification #Predictive models #Parameter estimation #Convergence #Costs #Noise generators #Automation
An analysis and design method for discrete-time linear systems under nested saturation
IEEE Transactions on Automatic Control - Tập 47 Số 8 - Trang 1305-1310 - 2002
A. Bateman, Zongli Lin
This paper considers a discrete-time linear system under nested saturation. Nested saturation arises, for example, in systems with actuators subject to both magnitude and rate saturation. A condition is derived in terms of a set of auxiliary feedback gains for determining if a given ellipsoid is contractively invariant. Moreover, this condition is shown to be equivalent to linear matrix inequaliti...... hiện toàn bộ
#Design methodology #Linear systems #Feedback #Ellipsoids #Linear matrix inequalities #Lyapunov method #Constraint optimization #Control systems #Hydraulic actuators #Design optimization
Phân Tích Tính Kiểm Soát Của Các Hệ Hai Chiều Sử Dụng Các Phương Pháp Một Chiều Dịch bởi AI
IEEE Transactions on Automatic Control - Tập 60 Số 11 - Trang 2977-2982 - 2015
Ahmadreza Argha, Li Li, Steven W. Su, Hung Nguyen
Làm việc với dạng một chiều của các hệ hai chiều là một chiến lược thay thế để giảm bớt độ phức tạp vốn có của các hệ hai chiều. Để đạt được dạng một chiều của các hệ hai chiều, khác với mô hình được gọi là WAM, một quy trình hàng (cột) mới đã được đề xuất gần đây. Phân tích tính kiểm soát của dạng một chiều mới này được khám phá trong tài liệu này. Hai khái niệm mới về tính kiểm soát được gọi là ...... hiện toàn bộ
#Các hệ hai chiều #phân tích tính kiểm soát #tính kiểm soát địa phương #mô hình WAM #phân tích tính kiểm soát #tính kiểm soát định hướng #mô hình FM đầu tiên #tính kiểm soát địa phương #mô hình WAM #các hệ hai chiều
Fixed-Time Convergent Distributed Observer Design of Linear Systems: A Kernel-Based Approach
IEEE Transactions on Automatic Control - Tập 68 Số 8 - Trang 4932-4939 - 2023
Pudong Ge, Peng Li, Boli Chen, Fei Teng
The robust distributed state estimation for a class of continuous-time linear time-invariant systems is achieved by a novel kernel-based distributed observer, which, for the first time, ensures fixed-time convergence properties. The communication network between the agents is prescribed by a directed graph in which each node involves a fixed-time convergent estimator. The local observer estimates ...... hiện toàn bộ
#Communication network #distributed observer #fixed-time convergence #Volterra operator
Adaptive control of parametric nonlinear autoregressive models via a new martingale approach
IEEE Transactions on Automatic Control - Tập 47 Số 9 - Trang 1524-1528 - 2002
B. Bercu, B. Portier
The purpose of this note is to investigate the stability and the optimality of the adaptive tracking for a wide class of parametric nonlinear autoregressive models, via a new martingale approach. Several asymptotic results for the standard least squares estimator of the unknown model parameter, such as a central limit theorem, a law of iterated logarithm, and strong laws of large numbers are also ...... hiện toàn bộ
#Adaptive control #Least squares approximation #Centralized control #Least squares methods #Trajectory #Polynomials #Stability analysis #Asymptotic stability #Power system modeling #Convergence
Fault Estimation for a Class of Nonlinear Systems Based on Intermediate Estimator
IEEE Transactions on Automatic Control - Tập 61 Số 9 - Trang 2518-2524 - 2016
Jun‐Wei Zhu, Guang‐Hong Yang, Hong Wang, Fuli Wang
An algebraic approach to strong stabilizability of linear nD MIMO systems
IEEE Transactions on Automatic Control - Tập 47 Số 9 - Trang 1510-1514 - 2002
Zhiping Lin, Jiang Qian Ying, Li Xu
Although some necessary conditions for the strong stabilizability of linear multidimensional (nD) multiple-input-multiple-output (MIMO) systems have been available recently, very little is known about sufficient conditions for the same problem. This note presents two sufficient conditions for strong stabilizability of some classes of linear nD MIMO systems obtained using an algebraic approach. A s...... hiện toàn bộ
#Neodymium #MIMO #Sufficient conditions #Multidimensional systems #Information systems #Output feedback #Linear systems #Polynomials
NP-completeness of sensor selection problems arising in partially observed discrete-event systems
IEEE Transactions on Automatic Control - Tập 47 Số 9 - Trang 1495-1499 - 2002
Tae-Sic Yoo, S. Lafortune
We consider the three properties of diagnosability, normality, and observability of discrete-event systems. In each case, we consider the problem of finding an observable event set with minimum cardinality such that the property under consideration holds. We prove that these search problems are computationally hard by showing that the corresponding decision problems are NP-complete.
#Sensor systems #Discrete event systems #Sensor phenomena and characterization #Automatic control #Observability #Polynomials #Control systems #Computational complexity #Search problems #Gold
Limit cycles with chattering in relay feedback systems
IEEE Transactions on Automatic Control - Tập 47 Số 9 - Trang 1414-1423 - 2002
K.H. Johansson, A.E. Barabanov, K.J. Astrom
Relay feedback has a large variety of applications in control engineering. Several interesting phenomena occur in simple relay systems. In the paper, scalar linear systems with relay feedback are analyzed. It is shown that a limit cycle where part of the limit cycle consists of fast relay switchings can occur. This chattering is analyzed in detail and conditions for approximating it by a sliding m...... hiện toàn bộ
#Limit-cycles #Sliding mode control #Control systems #Digital relays #Temperature control #Automatic control #Delta modulation #Nonlinear control systems #Feedback loop #Three-term control
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