Decentralized Estimator by the Method of Block-Diagonalization of Systems
Memoirs of the Faculty of Engineering, Yamaguchi University Volume 30 Issue 1
Page 123-129
published_at 1979
Title
ブロック対角化による分散型推定器
Decentralized Estimator by the Method of Block-Diagonalization of Systems
Creators
Kawazoe Yasuhiro
Source Identifiers
The implementation of centralized filtering theory incurs computational difficulties especially in applications to large scale systems. These difficulties can be overcome by the aid of hierarchical system theory. Based on this concept, a simple decentralized estimation algorithm is developed which improves the algorithm proposed by Sage, et al. The diagonalized decomposition of a system has made an important role for reducing the complexity of an estimation algorithm. The proposed hierarchical estimation scheme is divided into two levels whose are the coordination part of Lagrange multipliers and the decentralized estimation part. The procedure may be computationally attractive for nonlinear systems as well as linear systems. A numerical example is used to illustrate the approach for simultaneous estimation of states and parameters, which compose the nonlinear system. It is seen that the new method leads to a saving in computation time without lossing estimation accuracy.
Languages
jpn
Resource Type
departmental bulletin paper
Publishers
山口大学工学部
Date Issued
1979
File Version
Version of Record
Access Rights
open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools
工学部