被动雷达海上目标探测实验研究

针对海上目标的无源探测问题，利用无源双基地雷达（Passive Bistatic Radar，PBR）系统开展了海上无源目标探测的研究，进行了一系列实时海上目标探测的外场实验，实验成功采集了一些I/Q数据并画出系统显示图。文中首先介绍了PBR系统的工作原理，然后对信号处理流程进行详细说明，包括参考信号重构、脉冲压缩、直达波抑制、非相参积累和MTI、MTD动目标处理，最后介绍了外场实验结果并对所得实验数据进行分析。实验证明，该系统可以实现海上目标的无源相干检测。

Experimental Study on Maritime Target Detection of Passive Radar

In response to the problem of passive detection of maritime targets, the passive bistatic radar （PBR） system was used to conduct research on passive maritime target detection. A series of real?time outfield experiments on maritime target detection were conducted, and some I/Q data were successfully collected and system display diagrams were drawn. In this paper, the working principle of the PBR system is introduced, and then the signal processing process is described in detail, including reference signal reconstruction, pulse compression, direct wave suppression, non?cohe?rent accumulation, and MTI/MTD moving target processing. Finally, the outfield experimental results are introduced and the obtained experimental data are analyzed. Experiments show that this system can achieve passive coherent detection of maritime targets.