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By Fabian D. Lapierre and Jacques G. Verly


Detecting slow-moving targets by using radar space-time adaptive processing (STAP) is typically achieved using a sidelooking (SL) uniform linear array (ULA). In this case, the filter used to mitigate the interference is generally estimated by averaging snapshots at neighboring ranges. If a conformal antenna array (CAA) or a non-SL ULA is used instead of a SL ULA, applying the basic estimator degradates the detection performance due to the range dependence of the snapshots at neighboring ranges. In this paper, we propose an enhanced array interpolation technique combined with a range-dependence compensation technique which allows to apply STAP algorithms to CAAs. We apply our technique to a semi-circular array and we show that optimum performance can be achieved. 1

Year: 2010
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