
Accession Number : AD0608621
Title : EXTENSION OF LINEAR CONSTANTCOEFFICIENT ANALYSIS METHODS TO TIMEVARYING SYSTEMS.
Descriptive Note : Final rept. for Mar 62Oct 63,
Corporate Author : SYSTEMS TECHNOLOGY INC INGLEWOOD CALIF
Personal Author(s) : Johnson,Walter A. ; McRuer,Duane T. ; Phatak,Anil V.
Report Date : SEP 1964
Pagination or Media Count : 129
Abstract : Timevarying control system analysis is approached as an extension of wellunderstood constantcoefficient concepts. For system characterization, kernel functions and system functions are evolved by analogy with their constantcoefficient counterparts  weighting functions and transfer functions. For quantitative response information, a constantcoefficient series technique is developed in which the sum of a few constantcoefficient system responses is often sufficient to approximate the response of a timevarying system. The qualitative response or stability nature of certain timevarying systems is also treated. Several examples are given to illustrate each concept presented. (Author)
Descriptors : (*FLIGHT CONTROL SYSTEMS, MATHEMATICAL ANALYSIS), TIME, CONTROL SYSTEMS, STABILITY, PERTURBATION THEORY, POWER SERIES, SERIES(MATHEMATICS), DIFFERENTIAL EQUATIONS, FUNCTIONS(MATHEMATICS), INTEGRAL TRANSFORMS, ALGEBRA, HOMING DEVICES, APPROACH, LANDING, DYNAMICS
Distribution Statement : APPROVED FOR PUBLIC RELEASE