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Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,最新文献

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The Application of Intelligent Control System in a Power Plant 智能控制系统在某电厂的应用
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720942
S. Sun, Y. Zhang
{"title":"The Application of Intelligent Control System in a Power Plant","authors":"S. Sun, Y. Zhang","doi":"10.1109/AEROCS.1993.720942","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720942","url":null,"abstract":"Out of the requirements of the operational monitoring systems of large steam power plants, this paper suggests a scheme for developing the intelligent control systems in steam power plants by using modern artificial intelligence techniques. Together with some practical cases of application, the idea of the design of the system's functions and its constitution are introduced in this paper. And also, the characteristics and the prospects of the application of intelligent control system in steam power plants are analyzed.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121423995","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
Improved Performance Adaptive Control Under Standard Mrac Assumptions 在标准Mrac假设下改进的性能自适应控制
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720890
Ioannis N. M. Papadakis, S. Thomopoulos
{"title":"Improved Performance Adaptive Control Under Standard Mrac Assumptions","authors":"Ioannis N. M. Papadakis, S. Thomopoulos","doi":"10.1109/AEROCS.1993.720890","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720890","url":null,"abstract":"In this paper, an adaptive controller with improved transient and steady-state performance using parameter mismatch compensation and high-order tuning is presented. As in previous designs, the use of a properly designed signal, compensating for the effects of parameter mismatch on the output error, leads to \"arbitrary\" performance improvement. However, unlike previous designs based on first-order (classical) tuners, high-order tuning is necessary in order to avoid the effect of terms due to initial conditions on the output error. This constitutes a strong motivation for the use of high-order tuners in adaptive control which so far, were considered as more complicated alternatives to the classical first-order tuners. The proposed controller also provides robustness enhancement in the presence of bounded disturbances and/or a class of unmodeled dynamics or in the event of an adaptation switch-off end, as in classical model reference adaptive control, guarantees the exponential convergence of all errors to zero in the presence of sufficiently exciting reference inputs.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123011149","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: 0
Coverage Modelling for Reliability Assessment Self-Repairing Flight Control Systems 自修复飞行控制系统可靠性评估覆盖模型
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720970
Tijian Chen
{"title":"Coverage Modelling for Reliability Assessment Self-Repairing Flight Control Systems","authors":"Tijian Chen","doi":"10.1109/AEROCS.1993.720970","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720970","url":null,"abstract":"This paper reports a coverage model for assessing the overall reliability of self-repairing flight control systems where the performance of an FDIA (Failure Detection, Isolation and Accommodation) logic is involved. Provided that each of the N parallel redundant components is of the same exponential failure probability and non-repairable on-line, it has been proved that the resulting failure process can be described by a homogeneous Markov chain model if the failure can be identified perfectly by the FDIA scheme used, otherwise the process is non-homogeneous. Furthermore, for either homogeneous or non-homogeneous case approximation of computing the failure transition probability and the corresponding error have been derived.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"PP 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126362745","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: 0
Analog VLSI Neural Network Testing 模拟VLSI神经网络测试
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.721048
M. A. Redford, P. Nagvajara
{"title":"Analog VLSI Neural Network Testing","authors":"M. A. Redford, P. Nagvajara","doi":"10.1109/AEROCS.1993.721048","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.721048","url":null,"abstract":"As research works in analog VLSI have started evolving from research material to designing neural electronic applications. It is important, in view of testing complexities to think ahead on how to design testable neural circuits be it in discrete or VLSI level. For such applications to be reliable, there are steps necessary to understand. In other to deal with the issues of complexities in the hidden layer of the neural network. The methods proposed, considered utilities of analog design. Which are useful in both design and manufacturing of the analog VLSI artificial neural network (ANN). This work, therefore, revolves around design for testability with test coverage using ANN of the fault dictionary. The presented techniques show practical approach towards design and realization of reliable ANN.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131389304","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: 0
An Exact Determination of the Probability Density Function Under Coordinate Transformations 坐标变换下概率密度函数的精确确定
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720882
J.E. Gray
{"title":"An Exact Determination of the Probability Density Function Under Coordinate Transformations","authors":"J.E. Gray","doi":"10.1109/AEROCS.1993.720882","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720882","url":null,"abstract":"In this note, the formalism to determine the probability density function (PDF) resulting from a coordinate transformation applied to an arbitrary PDF is developed. The results are applied to the coordinate transformation used in target tracking, specifically the transformation from spherical to Cartesian coordinates. This result is then applied to the specific example of a Gaussian random variable transformed by sine and cosine coordinate transformations. A brief discussion is then made of multi-dimensional transformations.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"55 21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127999856","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: 11
Dealing with the Constraints in Multibody Systems Dynamics 多体系统动力学中的约束处理
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720988
Yuchen Zhou, Y. Stepanenko
{"title":"Dealing with the Constraints in Multibody Systems Dynamics","authors":"Yuchen Zhou, Y. Stepanenko","doi":"10.1109/AEROCS.1993.720988","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720988","url":null,"abstract":"In this paper, an iterative method is presented for handling the constraints in multibody systems. Using this method, a constrained multibody system is treated as a group of free bodies moving under the constraint forces as well as external driving forces. Therefore the representation of system dynamics is very simple. A convergent iteration process is proposed for computing the constraint forces. This process can be deduced from Gauss Principle of Least Constraint. It not only minimizes the constraint forces in the sense of LSQ, but also vanishes system constraint error. Hence the motion obtained must be the actual one, and the stabilization of constraints is achieved in a fairly natural way.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131997458","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: 0
Computational Techniques Based on the Block-Diagonal Form for Solving Large Systems Modeling Problems 基于块对角线形式的大型系统建模问题求解技术
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.721023
A. Varga
{"title":"Computational Techniques Based on the Block-Diagonal Form for Solving Large Systems Modeling Problems","authors":"A. Varga","doi":"10.1109/AEROCS.1993.721023","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.721023","url":null,"abstract":"The reduction of the state-matrix of a linear time-invariant state-space model to a block-diagonal form by using a state coordinate transformation is equivalent with an additive decomposition of the corresponding transfer-function matrix. Computationally involved and large storage demanding algorithms for solving several systems modeling problems can be conveniently reformulated such that they perform exclusively on the low order subsystems corresponding to the individual terms of suitable additive decompositions. Important reductions of both the computational effort and required memory usually by using the reformulated algorithms and thus, their applicability can be extended to handle higher order systems. The paper presents several algorithms suitable to perform efficiently on additively decomposed systems. The effectiveness of these algorithms for solving large order systems modeling problems relies on a reliable numerical algorithm to compute the block-diagonal form of a matrix.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114137854","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
/spl mu/-Synthesis Robust Control: What's wrong and how to fix it? /spl mu/-合成鲁棒控制:什么是错的，如何解决它?
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720997
M. Safonov, J. Ly, R. Chiang
{"title":"/spl mu/-Synthesis Robust Control: What's wrong and how to fix it?","authors":"M. Safonov, J. Ly, R. Chiang","doi":"10.1109/AEROCS.1993.720997","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720997","url":null,"abstract":"The theory of /spl mu/-synthesis introduced in [1, 2] provides, in principle, a broadly applicable theory for the optimal synthesis of multiloop feedback control laws that robustly meet performance and disturbance attenuation specifications despite unknown-but-bounded nonlinearities and parameter variations. Commercial MATLAB-based software packages implementing a crude approximation to the theory are available [3, 4], but these computer packages address the complex /spl mu/-synthesis problem via a somewhat flawed implementation of the original D-K iteration algorithm which involves the repetition of the following three operations on a suitable augmented closed-loop system transfer function: 1. Optimize a diagonal scaling frequency response matrix D(jw) for a fixed control law K(s). 2. Perform an ad hoc state space curve-fit to D(jw). 3. Use H/sup /spl infin// control to compute a control law K(s) with the diagonal scaling D(s) fixed. The curve-fitting of Step 2 has, until now, been a major obstacle to the realization of the original vision of a completely automated /spl mu/-synthesis procedure for robust control design. This paper describes new theoretical results and how they enable one to bypas the difficult and awkward curve-fitting of Step 2. The result is the first reliable computational algorithm for /spl mu/-synthesis controller design. The technique has been implemented on MATLAB. An example involving real /spl mu/-synthesis for the ACC Benchmark problem is included.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116066206","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: 35
On the Control of a Simplified Rocking Delta Wing Model 一种简化摇摆三角翼模型的控制研究
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.720974
C. Chien, C. Cheng, M.D. Chen, M. Lai
{"title":"On the Control of a Simplified Rocking Delta Wing Model","authors":"C. Chien, C. Cheng, M.D. Chen, M. Lai","doi":"10.1109/AEROCS.1993.720974","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.720974","url":null,"abstract":"In this paper, we propose a nonlinear state feedback control law for an approximated delta wing wingrock control experiment model. The stability of the closed loop system is proved and the performance is demonstrated.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"519 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123126101","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: 0
Nested Motion Planning for an Autonomous Robot 自主机器人的嵌套运动规划
Proceedings. The First IEEE Regional Conference on Aerospace Control Systems, Pub Date : 1993-05-25 DOI: 10.1109/AEROCS.1993.721017
J. Albus, A. Meystel, S. Uzzaman
{"title":"Nested Motion Planning for an Autonomous Robot","authors":"J. Albus, A. Meystel, S. Uzzaman","doi":"10.1109/AEROCS.1993.721017","DOIUrl":"https://doi.org/10.1109/AEROCS.1993.721017","url":null,"abstract":"Gbstract This paper addresses some of the issues associated with the planning in ii hierarchical systems. Specifically, it is required that controls for an autonomous vehicle be synthesized as the result of the nested hierarchical analysis of the minimum time motion problem. It is demonstrated that search in the output space allows for efficient planningkontrol procedures. The results of 2level nested hierarchical planning are given as a representative simulation example.","PeriodicalId":170527,"journal":{"name":"Proceedings. The First IEEE Regional Conference on Aerospace Control Systems,","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123708623","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: 11
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