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RESEARCH PAPERS

Amplitude Frequency Response Analysis and Synthesis of Unfactored Transfer Functions

[+] Author and Article Information
J. S. Ausman

Consulting and Research Staff, Guidance and Control Systems Division, Litton Systems, Inc., Woodland Hills, Calif.

J. Basic Eng 86(1), 32-36 (Mar 01, 1964) (5 pages) doi:10.1115/1.3653106 History: Received July 17, 1962; Online November 03, 2011

Abstract

A graphical method provides, without templates and without factoring, a means for rapidly estimating log-amplitude versus log-frequency response curves from transfer functions in their unfactored polynomial form. The technique can also be used to design or synthesize transfer functions which will produce a specified frequency response characteristic. Included is a graphical stability criterion for third and fourth-order systems which provides a quick check on system stability during the course of design or of analysis of the system response.

Copyright © 1964 by ASME
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