Discretization of Existing Continuous Control Systems

[+] Author and Article Information
Somnath Pan

Department of Engineering and Mining Machinery, Indian School of Mines, Dhanbad-826 004, India

Jayanta Pal

Department of Electrical Engineering, Indian Institute of Technology, Kharagpur-721 302, India

J. Dyn. Sys., Meas., Control 119(2), 315-318 (Jun 01, 1997) (4 pages) doi:10.1115/1.2801255 History: Received January 13, 1995; Online December 03, 2007


A new method is presented for discretizing an existing analog controller. The method is based on frequency response matching of the closed-loop digital system with that of the original analog system. The method requires solution of linear algebraic equations and is computationally simple. Efficacy of the method is illustrated through examples taken from the literature.

Copyright © 1997 by The American Society of Mechanical Engineers
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