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GLRT-Based CFAR Detection in Passive Bistatic Radar

机译:无源双基地雷达中基于GLRT的CFAR检测

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摘要

The work presented here addresses the problem of detecting a target in a passive bistatic radar (PBR) in the presence of interference signals, including receiver noise, direct signal, multipath/clutter echoes, and interfering targets. To this end, after outlining the model of the detection problem in the surveillance channel as a composite hypothesis test, a generalized likelihood ratio test (GLRT) is derived. Its performance is expressed in the closed forms for both the interference-alone case, the probability of false alarm, and the signal-plus-interference case, the probability of detection. A thorough performance assessment is also given, and the results show the superiority of the proposed detector in detection performance and false alarm regulation, and so the proper cancellation of the direct signal, multipath/clutter echoes, and interfering targets occur.
机译:本文介绍的工作解决了在存在干扰信号的情况下在无源双基地雷达(PBR)中检测目标的问题,这些信号包括接收机噪声,直接信号,多径/杂波回波和干扰目标。为此,在概述监视渠道中的检测问题的模型作为复合假设检验后,得出了广义似然比检验(GLRT)。对于仅发生干扰的情况(错误警报的可能性)和发生信号加干扰的情况(检测的可能性),其性能均以封闭形式表示。还进行了全面的性能评估,结果表明了所提出的检测器在检测性能和错误警报调节方面的优越性,因此可以正确消除直接信号,多径/杂波回波和干扰目标。

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