
Accession Number : AD0668056
Title : INVESTIGATING ONE CLASS OF EXTREMUM SYSTEMS OF DISCRETE ACTION UNDER THE INFLUENCE OF RANDOM INTERFERENCES,
Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHTPATTERSON AFB OHIO
Personal Author(s) : Aleksandrovskii,N. M. ; Madzharov,N. E.
Report Date : 28 JUL 1967
Pagination or Media Count : 15
Abstract : An automaticcontrol system in which the sampled signal is used for both controlling the actuator and forming the control law is theoretically considered. It is assumed that: the plant is firstorder linear; the sampling period is much longer than the total time of control operations. It is found that considerable deviations from the absolute optimum do not seriously affect system accuracy; the latter increases up to a certain value of gain; beyond that value, the extremumtracking error becomes higher again because of the increased hunting amplitude. Recommendations for selecting the optimal system gain are given. Formulas are developed for the steadystate error of the samplingdata system subjected to noise; in these formulas, the plant inertia is allowed for.
Descriptors : (*CONTROL SYSTEMS, THEORY), SAMPLING, OPTIMIZATION, AUTOMATIC, ACCURACY, ERRORS, NOISE, SERVOMECHANISMS, NONLINEAR SYSTEMS, DIFFERENTIAL EQUATIONS, USSR
Subject Categories : Operations Research
Distribution Statement : APPROVED FOR PUBLIC RELEASE