
Accession Number : ADA112875
Title : A FriedlandLike Filtering Technique for Estimating Piecewise Constant Controls in Discrete Linear Stochastic Systems.
Descriptive Note : Technical rept.,
Corporate Author : PRACTICAL SCIENCES INC CARLISLE MA
Personal Author(s) : Stalford,Harold L
PDF Url : ADA112875
Report Date : Sep 1981
Pagination or Media Count : 62
Abstract : We consider discrete linear stochastic processes in which the control variables take unknown jumps at unknown times and remain constant between jumps. A GLR algorithm is presented for detecting the jump time. The advent of the trifilter technique together with the reinitialization procedure makes it unnecessary to augment the state x with the control u and to use augmented state filters in the estimation of state and piecewise constant controls. The new GLR algorithm avoids, therefore, computational problems that may be associated with processing large matrices in augmented state filters. It uses only unaugmented state filters and, consequently, it has particular application to problems involving a large number of state and/or jump variables.
Descriptors : *Linear filtering, *Constants, *Control, *Linear systems, *Stochastic processes, Stochastic control, Variables, Optimization, Estimates, Algorithms, Detection, Computations, Matrices(Mathematics), Discrete distribution, Vector analysis
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE