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微弱目标检测一直是雷达信号处理的重点和难点,辐射计是一种高灵敏度的被动探测雷达,而对辐射计的检测分析研究较少。对全功率辐射计的输出信号,本文给出其分布特性的理论描述和仿真验证,然后,基于背景信号和目标信号有差异的统计特性,给出了恒虚警准则下的检测性能,结果说明,辐射计对微弱目标具有良好的检测性能。
Weak target detection has always been the focus and difficulty of radar signal processing. Radiometer is a kind of high-sensitivity passive detection radar, and the research of radiometric detection and analysis is few. Based on the statistical characteristics of the difference between the background signal and the target signal, the detection performance of the full power radiometer is given. The results show that The radiometer has good detection performance for weak targets.