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Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)最新文献

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Active control of a traveling medium with varying length 对不同长度的行进介质的主动控制
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703372
J. Ni, W. D. Zhu, J. Huang
{"title":"Active control of a traveling medium with varying length","authors":"J. Ni, W. D. Zhu, J. Huang","doi":"10.1109/ACC.1998.703372","DOIUrl":"https://doi.org/10.1109/ACC.1998.703372","url":null,"abstract":"Active control of a traveling medium with varying length is studied. The control device applies a pointwise force/moment fixed either in the space or to the medium. In the first case the control action is proportional to the local velocity/angular velocity of the point of the medium instantaneously located at the position of the control device. In the latter the control action is proportional to the total velocity/angular velocity of the point of attachment of the control device to the medium. The control laws are shown to stabilize the traveling medium during both retraction and extrusion, and can be easily implemented.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132180879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Searching for robust minimal-order compensators 鲁棒最小阶补偿器的搜索
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.688440
Qian Wang, R. Stengel
{"title":"Searching for robust minimal-order compensators","authors":"Qian Wang, R. Stengel","doi":"10.1109/ACC.1998.688440","DOIUrl":"https://doi.org/10.1109/ACC.1998.688440","url":null,"abstract":"A method of designing a family of robust compensators is presented. Each compensator's transfer function is found using a genetic-algorithm search for numerator and denominator coefficients that minimize the probability of unsatisfactory stability and performance, subject to uncertainty in the real parameters of the plant. As the search progresses, probabilities are estimated by Monte Carlo evaluation of stability and performance criteria. The design procedure employs a sweep from the lowest feasible transfer-function order to higher order, terminating either when design goals have been achieved or when no further improvement is evident. The study illustrates the evolution of pole and zero locations as compensator order increases for a benchmark problem in which settling-time and control-usage performance criteria must be satisfied subject to minimum likelihood of instability. The method provides a means for estimating the best possible compensation of a given order based on repeated searches.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132430874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
On the reduction of a general 2-D polynomial system matrix to GSS form 一般二维多项式系统矩阵约简为GSS形式
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703088
S. J. McInerney, A. Pugh, M. S. Boudellioua, G.E. Hayton
{"title":"On the reduction of a general 2-D polynomial system matrix to GSS form","authors":"S. J. McInerney, A. Pugh, M. S. Boudellioua, G.E. Hayton","doi":"10.1109/ACC.1998.703088","DOIUrl":"https://doi.org/10.1109/ACC.1998.703088","url":null,"abstract":"An algorithm which reduces a general 2-D polynomial matrix to an equivalent matrix pencil form is presented and with slight modifications this algorithm is used to reduce a 2-D polynomial system matrix to generalised state space form. The exact nature of the equivalence transformations connecting the different forms are established.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132693935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Observability for simple Wiener and simple Wiener-Hammerstein systems 简单Wiener和简单Wiener- hammerstein系统的可观测性
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703051
D. Nešić
{"title":"Observability for simple Wiener and simple Wiener-Hammerstein systems","authors":"D. Nešić","doi":"10.1109/ACC.1998.703051","DOIUrl":"https://doi.org/10.1109/ACC.1998.703051","url":null,"abstract":"Necessary and sufficient conditions for observability are given for the class of simple Wiener-Hammerstein systems. The obtained observability test resembles the well known result for the series connection of two linear systems but it is subtly different. Observability tests that we present are very easy to use.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133190705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Observability conditions for biased linear time invariant systems 偏置线性时不变系统的可观测性条件
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703599
C. Bembenek, T. Chmielewski, P. Kalata
{"title":"Observability conditions for biased linear time invariant systems","authors":"C. Bembenek, T. Chmielewski, P. Kalata","doi":"10.1109/ACC.1998.703599","DOIUrl":"https://doi.org/10.1109/ACC.1998.703599","url":null,"abstract":"This paper addresses the existence of bias estimators in linear time invariant (LTI) systems. One approach to bias estimation is state augmentation, in which a new state corresponding to each unknown bias term is appended to the state vector. The Kalman filter is then applied to the augmented system and the biases are identified as part of the filtering process. A simplified observability rank test for the existence of bias estimators for a LTI system with unknown, constant state and measurement biases has been recently derived. A reduced row observability test matrix is used to show a necessary and sufficient condition for complete bias observability. This paper investigates the use of additional measurements in the system and their ability to alter the bias observability conditions of the system. Examples are presented.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133228230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
An extension of the generalized Hermite-Biehler theorem: relaxation of earlier assumptions 广义赫米特-比勒定理的扩展：先前假设的放宽
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.688454
Ming-Tzu Ho, A. Datta, S. P. Bhattacharyya
{"title":"An extension of the generalized Hermite-Biehler theorem: relaxation of earlier assumptions","authors":"Ming-Tzu Ho, A. Datta, S. P. Bhattacharyya","doi":"10.1109/ACC.1998.688454","DOIUrl":"https://doi.org/10.1109/ACC.1998.688454","url":null,"abstract":"A generalization of the classical Hermite-Biehler theorem was derived by the authors (1997) and shown to be useful for solving a number of fixed order and structure stabilization problems. This generalization, though adequate for solving these stabilization problems, required the assumption that the polynomial in question have no roots on the imaginary axis except for possibly a simple root at the origin. In this note, one result is extended to also allow roots on the imaginary axis: the main conclusion is that the roots, if any, at the origin modify the earlier theorem statement only very slightly while the other imaginary axis roots leave it unchanged. The extension presented here permits a clearer exposition of the stabilization results previously obtained.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131440108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Optimal ripple-free deadbeat controllers for systems with time delays 时滞系统的最优无纹波无差拍控制器
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.694751
H. Elaydi, R. Paz
{"title":"Optimal ripple-free deadbeat controllers for systems with time delays","authors":"H. Elaydi, R. Paz","doi":"10.1109/ACC.1998.694751","DOIUrl":"https://doi.org/10.1109/ACC.1998.694751","url":null,"abstract":"A ripple-free deadbeat controller for a system with time delays is proposed. Our approach to this problem uses an affine matrix parametrization of the Diophantine equation. Based on this parametrization, LMI conditions are provided for optimal or constrained controllers with design quantities such as overshoot, undershoot, control amplitude, \"slew rate\" as well as for norm bounds such as l/sub 1/, l/sub 2/ and l/sub /spl infin//.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126580659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Robust D-stability via positivity 通过正性实现稳健的d稳定性
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703085
D. Siljak, D. Stipanović
{"title":"Robust D-stability via positivity","authors":"D. Siljak, D. Stipanović","doi":"10.1109/ACC.1998.703085","DOIUrl":"https://doi.org/10.1109/ACC.1998.703085","url":null,"abstract":"The main objective of the paper is to convert the general problem of robust D-stability of a complex polynomial to positivity in the real domain of the corresponding magnitude function. In particular, the obtained Hurwitz stability criterion is applied to polynomials with interval parameters and polynomic uncertainty structures. The robust stability is verified by testing positivity of a real polynomial using the Bernstein subdivision algorithm. A new feature in this context is the stopping criterion, which is applied whenever the algorithm is inconclusive after a large number of iterations, but we can show that at least one zero of the polynomial is closer to the imaginary axis than a prescribed limit.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128839828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
A simple recursive algorithm for diagnosis of abrupt changes in signals and systems 一种用于诊断信号和系统突变的简单递归算法
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.707360
I. Nikiforov
{"title":"A simple recursive algorithm for diagnosis of abrupt changes in signals and systems","authors":"I. Nikiforov","doi":"10.1109/ACC.1998.707360","DOIUrl":"https://doi.org/10.1109/ACC.1998.707360","url":null,"abstract":"We address the problem of detecting and isolating abrupt changes in signals and systems with random disturbances. An asymptotic optimal solution to this problem, which has been proposed in previous works, leads to the number of arithmetical operations at time t which grows to infinity with t. Moreover, the proposed criterion of optimality does not impose a constraint on the probability of false isolation when the change time t/sub 0/>1. In this paper we propose another more realistic criterion, establish a new simple recursive change detection/isolation algorithm and investigate its statistical properties. This algorithm can be recommended for on-line implementations.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127856302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
The Simplex architecture for safe online control system upgrades 采用Simplex架构进行安全在线控制系统升级
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI: 10.1109/ACC.1998.703255
D. Seto, B. Krogh, L. Sha, A. Chutinan
{"title":"The Simplex architecture for safe online control system upgrades","authors":"D. Seto, B. Krogh, L. Sha, A. Chutinan","doi":"10.1109/ACC.1998.703255","DOIUrl":"https://doi.org/10.1109/ACC.1998.703255","url":null,"abstract":"We describe the Simplex architecture, a real-time software technology which supports the safe, reliable introduction of control system upgrades while the system is running. We introduce its basic structure in control systems, discuss its fault-tolerance feature, and investigate the control issues when the technology is employed. Application of the Simplex architecture is demonstrated for a plasma-enhanced chemical vapor deposition (PECVD) system, a standard process in semiconductor manufacturing. We conclude the paper with a discussion of the potential impact that the Simplex architecture can make on future control applications.","PeriodicalId":364267,"journal":{"name":"Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134639736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 115
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