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IETE Journal of Research Volume 7, 1961 - Issue 2
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Original Articles

Measurement of Frequency Response of a Control System in Presence of Noise

B. ChatterjeeDepartment of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur.
Pages 84-88 | Received 02 Nov 1960, Published online: 21 Aug 2015
 
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Abstract

A method of determining the frequency response and hence the transfer function of a control system has been described. With this method, it was possible to measure the gain and phase change in a servo system at a high frequency even where the output signal is far below the noise level at the output.

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