{"title":"Multiple time scale decomposition and state space aggregation of controlled Markov processes","authors":"R. Mehra, R. Washburn","doi":"10.1109/CDC.1979.270288","DOIUrl":"https://doi.org/10.1109/CDC.1979.270288","url":null,"abstract":"For large scale systems multistage optimization over a long horizon is most conveniently done in a hierarchical fashion: first a long range time-space aggregated problem is solved and then a short range problem is solved. In some cases, a medium range optimization problem is also defined. Operation scheduling for nuclear-hydro-thermal power systems is a typical example. The above represents an intuitive description of a possible hierarchical decomposition of the operation scheduling problem. In this paper we present a mathematical treatment in terms of a controlled finite state Markov process. Our treatment indicates how the approximate decomposition of the time scale and the aggregation of the state space follows from properties of the probability transition matrix of the Markov process.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129210742","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}
{"title":"Stopping problems for random fields with partially nested information","authors":"R. Washburn, A. Willsky","doi":"10.1109/CDC.1979.270268","DOIUrl":"https://doi.org/10.1109/CDC.1979.270268","url":null,"abstract":"This paper formulates a general optimal stopping problem for random fields with a partially ordered parameter set and with a partially ordered information structure in the sense of Ho and Chu [1]. It is possible in this framework of partially ordered parameters to formulate naturally a wide variety of stopping problems which are difficult or impossible to formulate in the conventional one-parameter framework. The dynamic programming solution of the one-parameter stopping problem extends to the more general case of partially ordered parameters. The resulting dynamic program is backward recursive with respect to the partial order, and this recursive property enables one to use the full structure of the partially ordered parameter set to calculate the solution to the stopping problem in an efficient manner.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121372499","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}
{"title":"Some implementation considerations for numerically stable flight filters","authors":"S. Strickland, J. Vagners","doi":"10.1109/CDC.1979.270055","DOIUrl":"https://doi.org/10.1109/CDC.1979.270055","url":null,"abstract":"In this paper, an efficient error covariance reset scheme is presented for upper-unitary triangulardiagonal (U-D) factored multimode filter applications. The numerical sensitivity of the U-D measurement update algorithm to state vector ordering is investigated, and the algorithm is shown to be sensitive to ordering of the measurement matrix with respect to zero and non-zero elements. An ordering scheme which takes advantage of this sensitivity is suggested by the results.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124134031","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}
{"title":"The dedicated observer approach to instrument failure detection","authors":"R. Clark","doi":"10.1109/CDC.1979.270170","DOIUrl":"https://doi.org/10.1109/CDC.1979.270170","url":null,"abstract":"One approach to the problem of detecting instrument failure in operating systems using functional redundancy (as opposed to hardware redundancy) is described. The practical feasibility of this scheme is discussed in terms of results obtained on simulators. A bibliography covering the field of fault detection by \"artificial\" redundancy is included.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115298177","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}
{"title":"Transducer smearing correction using a microprocessor-based discrete deconvolution","authors":"G. Demoment, C. Posca, D. Saint-Félix","doi":"10.1109/CDC.1979.270061","DOIUrl":"https://doi.org/10.1109/CDC.1979.270061","url":null,"abstract":"","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115847992","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}
{"title":"On the design of observers by matrix generalized inverses","authors":"V. Lovass-Nagy, R. Miller, R. Mukundan","doi":"10.1109/CDC.1979.270065","DOIUrl":"https://doi.org/10.1109/CDC.1979.270065","url":null,"abstract":"A method for the design of Luenberger observers for linear systems is developed utilizing generalized inverses of matrices. The method can be applied both to time-invariant and to time-varying systems.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"67 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132545728","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}
{"title":"Non-stationary linear restoration of noisy images","authors":"J. Abramatic, L. Silverman","doi":"10.1109/CDC.1979.270143","DOIUrl":"https://doi.org/10.1109/CDC.1979.270143","url":null,"abstract":"The restoration of images degraded by an additive white noise is performed by non-stationary filtering the noisy image. The standard Wiener approach to this problem is modified to take into account the edge information of the image. Various filters of increasing complexity are derived. Experimental results are shown and compared to the standard Wiener filter results and other earlier attempts involving non-stationary filters.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131145393","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}
{"title":"Communications and control options for load management and distribution automation","authors":"R. Adams, P. Overholt","doi":"10.1109/CDC.1979.270176","DOIUrl":"https://doi.org/10.1109/CDC.1979.270176","url":null,"abstract":"Due to increasing pressures from fuel and capital costs, electric utilities are exploring several avenues that may offer relief from worsening ratios of peak to base load consumption patterns. At the same time, new devices based on technically sophisticated microelectronics seem to promise easy solutions to communications and control problems. Manufacturers of this type of equipment are eager to meet the large potential market with technological solutions but as yet the cost effectiveness of such solutions has not been demonstrated. The Department of Energy/Electric Power Research Institute (DOE/EPRI) sponsored Field Demonstration of Communication Systems for Distribution Automation, along with several (smaller) utility field trials are revealing much about the effectiveness of various types of communicatons systems, for load management and distribution automation and also about the problems of installation and customer acceptance. The five DOE/EPRI field demonstrations1 are in various stages of analysis and operation. One of the demonstrations, based on telephone communication2, completed the one year data acquistion period, July 31, 1979, and analysis for the final report is now in progress. Three different power-line carrier systems started the one year data acquisition period on July 1, 1979. The radio system is scheduled to start the one year data acquisition in September 1979.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126940254","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}
{"title":"Principal component analysis in nonlinear systems: Preliminary results","authors":"B. Moore","doi":"10.1109/CDC.1979.270114","DOIUrl":"https://doi.org/10.1109/CDC.1979.270114","url":null,"abstract":"Principal component analysis (Hotelling, 1933), supported by the \"state of the art\" algorithm (Golub and Reinsch, 1970) for performing singular valud decomposition, is a powerful tool which has been applied (Moore, 1979) successfully in the analysis of linear systems. In this paper attention is called to the fact that it is also a very useful tool for computing and evaluating affine approximations of multi-dimensional nonlinear maps over specified domains. Included are preliminary ideas about application of the tool to the following problems: numerical linearization of dynamic systems, gradient approximations for optimization, and numerical differentiation of vector time signals.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114814061","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}
{"title":"Recent developments in eigenvalue-eigenspace assignment","authors":"B. Moore, C. Wierzbicki, G. Klein","doi":"10.1109/CDC.1979.270107","DOIUrl":"https://doi.org/10.1109/CDC.1979.270107","url":null,"abstract":"Response characteristics of a linear state feed-back controller are reflected indirectly by the closed loop eigenstructure, and it is possible to impose constraints on this structure. These constraints define a class of matrices, and unless it has a unique member, one is faced with computing a \"good\" feedback matrix. In this paper we address two aspects of this problem which allow direct application of numerical analysis work. Essentially, there are two ideas which are discussed 1) If the closed loop eigenvalues are separated, one should avoid a closed loop system whose eigenvector matrix is nearly singular. 2) If there are to be repeated or clustered eigenvalues, one should not deal directly with the eigenvectors of the cluster; instead one should use an orthogonal basis which approximates the corresponding closed loop (A+BF) invariant subspace.","PeriodicalId":338908,"journal":{"name":"1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114985764","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}