Accession Number : AD0657037

Title :   DIGITAL COMPUTER PROGRAM FOR ROOT LOCUS ANALYSES OF OPEN-LOOP TRANSFER FUNCTIONS CONTAINING AN E-TS LEAD-LAG TERM,

Corporate Author : CALIFORNIA UNIV BERKELEY RADIO ASTRONOMY LAB

Personal Author(s) : Schubert,George R.

Report Date : SEP 1965

Pagination or Media Count : 36

Abstract : Frequently it is desirable in system control problems to find poles of transfer functions of the form (G(s) e to the power (- tau s))/(1 + G(s) e to the power (- tau s)) where G(s) is either the ratio of unfactored polynomials or the ratio of linear and quadratic factors in either root-locus or Bode form. A FORTRAN IV digital computer program has been written by the author to find these poles. This paper describes the usage of this routine. Test cases are given showing sample input and output. (Author)

Descriptors :   (*TRANSFER FUNCTIONS, COMPUTER PROGRAMS), (*CONTROL SYSTEMS, TRANSFER FUNCTIONS), EXPONENTIAL FUNCTIONS, POLYNOMIALS, APPROXIMATION(MATHEMATICS), SUBROUTINES

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE