The use of a simple digital first-order recursive filter for mean-level detection is described. Performance characteristics are derived for the case where the background noise is stationary, and detection results are given for Swerling Case 2 fluctuating signals. Equations are derived for computing false-alarm performance in nonstationary backgrounds, and results are given for some special cases. Comparisons are made with performance of a conventional mean-level circuit in stationary and nonstationary noise.
Mean-Level Detection Utilizing a Digital First-Order Recursive Filter
IEEE Transactions on Aerospace and Electronic Systems ; AES-12 , 6 ; 793-798
1976-11-01
1002209 byte
Article (Journal)
Electronic Resource
English
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