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无源雷达系统实际探测能力与实际应用场景中多种因素密切关联。提出了一种基于实测信号与探测目标动态特性相结合的仿真评估方法,利用实际无源雷达接收系统获取参考通道和监视通道的环境信号,利用参考通道重构直达波,结合针对目标的运动特性和散射特性,在直达波上调制回波功率、时延、多普勒信息,得到目标回波并叠加在监视通道中得到监视信息,对参考通道和监视通道进行常规的信号处理,通过蒙特卡洛仿真获得针对目标的发现概率,可用于评估实际场景中针对特定目标的无源雷达探测能力。
The actual detection capability of a passive radar system is closely related to many factors in practical application scenarios. A simulation evaluation method based on the measured signal and the dynamic characteristics of the detection target is proposed. The actual passive radar receiving system is used to obtain the environmental signal of the reference channel and the monitoring channel. The reference channel is used to reconstruct the direct wave. Combining with the target moving characteristics And scattering characteristics, in the direct wave modulation echo power, delay, Doppler information, the target echo and superimposed on the monitoring channel to obtain monitoring information, the reference channel and the monitoring channel for conventional signal processing, through Monte Carlo Los simulation to achieve the goal of finding probability, can be used to assess the actual scene for a specific target passive radar detection capability.