基于信噪比归一化的外源雷达接收站布站研究

Receiver placement in passive radar based on normalized signal-to-noise ratio

提出了一种基于目标信噪比(SNR)归一化的布站方法,对基于平均目标信噪比布站方法存在的外源雷达接收站恒位于探测区域中心的缺陷及产生原因进行了分析,结合雷达可探测范围比较了在同一配置环境下,当发射源为2个时两种方法的布站性能,并推广至多辐射源条件下的布站情况.对两种方法进行Matlab仿真对比,结果表明:本方法克服了原方法的缺陷,并在发射源集中于同一侧的条件下提高了雷达可探测范围.

A receiver placement improved method based on target’s normalized SNR(signal-to-noise ratio)was proposed for the passive radar.The receiver placement method based on target’s average SNR was used for passive radar.But it has the defect that the optimal receiver placement will always be at the center of the detection area.The defect of the original receiver placement method based on target’s average SNR was analyzed and attributed.Combined with the radar detectable range,the performances of the two methods in the same configuration environment were compared when transmitter number is 2,and study was extended to the multi-transmitter situation.Finally,the proposed improved method and the original method were simulated and compared in Matlab.The results indicate that the method based on the target’s normalized SNR method overcomes the defects of the original method and improves the radar detectable range when transmitters distribute in the same side of detection area.