Accession Number : AD0736800

Title :   Observability of Nonlinear Systems,

Corporate Author : WASHINGTON UNIV ST LOUIS MO CONTROL SYSTEMS SCIENCE AND ENGINEERING

Personal Author(s) : Kou,Shauying R. ; Elliott,David L. ; Tarn,Tzyh-Jong

Report Date : 15 DEC 1971

Pagination or Media Count : 20

Abstract : The purpose of the paper is to investigate the problem of observability of nonlinear systems. Two sufficient conditions of global observability of nonlinear systems are presented: (1) the ratio condition which is the generalization of Fujisawa and Kuh's ratio condition of circuit theory, (2) the strongly positive semidefinite condition. The relationships between these two conditions as well as the condition of positive definiteness of Fitts are given. (Author)

Descriptors :   (*CONTROL SYSTEMS, MATHEMATICAL MODELS), NONLINEAR SYSTEMS, DIFFERENTIAL EQUATIONS, MATRICES(MATHEMATICS), MAPPING(TRANSFORMATIONS), THEOREMS

Subject Categories : Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE