Accession Number : AD0703056

Title :   INVESTIGATION OF THE STABILITY OF CONTROL SYSTEMS WITH DOUBLE (FREQUENCY AND WIDTH) PULSE MODULATION BY THE DIRECT LYAPUNOV METHOD,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kuntsevich,V. M. ; Chekhovoi,Yu. N.

Report Date : 14 OCT 1969

Pagination or Media Count : 27

Abstract : Discussion is based on a typical control system comprised of a continuous linear section (CLS) and combined pulse modulator (CPM). The modulator converts continuous output signal into a sequence of pulses of constant amplitude and modulated in sign, frequency, and duration. The modulation law is expressed. The development consists of the following: application of the direct Lyapunov method to the study of stability of a system with double pulse modulation; the Lyapunov function and its first difference; conditions of complete stability of a static system; and conditions of complete stability of a set of equilibrium positions of astatic systems. The method presented is applicable not only to systems with double pulse modulation but to all pulse systems which may be regarded as a special case of such a system.

Descriptors :   (*CONTROL SYSTEMS, STABILITY), PULSES, PULSE MODULATION, USSR

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE