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The Amplitude Distribution and False Alarm Rate of Noise after Post-Detection Filtering

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2 Author(s)
S. Thaler ; Formerly with Hughes Aircraft Co., Culver City, Calif. Now with the West Coast Missile and Surface Radar Div., RCA, Van Nuys, Calif. ; S. A. Meltzer

A digital computer has been used to simulate the passage of white, Gaussian noise through a narrow-band filter, followed by a detector and a post-detection filter. The amplitude distribution of the output of the post-detection filter has been obtained for several different detectors. In addition, the variation of false alarm rates with detector law, post-detection filtering, time constants, and threshold setting has been investigated. Not only the numerical results but also the approach, and the new detectors described are believed of interest.

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Proceedings of the IRE  (Volume:49 ,  Issue: 2 )