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Sidelobe Blanking with Expanded Models

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2 Author(s)
Shnidman, D.A. ; RADET Consulting, Lexington, MA, USA ; Shnidman, N.R.

Sidelobe blanking (SLB) is used in radar systems to mitigate impulsive interference that enters the radar through a sidelobe of the primary antenna. A second, auxiliary antenna and channel are employed by an SLB system to produce a second output. This latter output is compared to that of the primary antenna channel, and a decision is then made, based on the classic Maisel SLB architecture, as to whether to blank the primary channel output. This work extends previous performance results, with more realistic and versatile expanded models for targets and interference. The determination of SLB performance involves the evaluation of several probability functions. The derived probability expressions allow for an arbitrary number of integrated pulses. The SLB design and performance results can be determined with these probability functions. In this paper, examples are presented and discussed, and design results for typical SLB systems are obtained.

Published in:

Aerospace and Electronic Systems, IEEE Transactions on  (Volume:47 ,  Issue: 2 )