多发多收多基地雷达系统分辨性能分析  

Resolution Performance Analysis of Multiple-transmitter Multiple-receiver Multistatic Radar System

作　　者：闵涛[1] 肖顺平[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《信号处理》2013年第3期375-385,共11页Journal of Signal Processing

摘　　要：对密集多目标的探测是当前雷达技术领域所面临的前沿课题和紧迫任务。本文考虑一个多发多收多基地雷达系统,在分析空间相关和非相关多基地雷达模糊函数的基础上,以模糊函数3-dB投影面积值为指标,对比单发多收多基地雷达,分析了不同传感器部署和波形选择情况下的目标距离分辨性能,并给出了相应的仿真结果。仿真结果显示,空间相关信息的引入,提高了多基地雷达系统的目标分辨性能;多发多收多基地雷达虽然增加了系统的复杂性,但如果配置不当,在目标分辨性能方面,不一定优于单发多收多基地雷达。本文的研究成果,不仅能用于对多基地雷达密集多目标探测性能的分析,还能为多基地雷达系统波形设计、布站提供一定的理论参考。Detection of multiple unresolved targets is a frontier topic and pressing task in radar technology field. Consid- ering a multistatic radar system with multiple transmitters and multiple receivers, ambiguity functions for spatially coherent and incoherent multistatic radar were analyzed, 3-dB contour area of ambiguity function was used as a measurement to com- pare target range resolution performance of different sensor geometrical configuration and waveform selection with one-trans- mitter multiple-receiver multistatic radar, relevant simulation results were presented. The resuhs show that spatial coherence information enhances target range resolution performance of muhistatic radar system, although multiple-transmitter multiple- receiver muhistatic radar system increases system complexity, if improperly configured, the target resolution performance may be not superior to that of one-transmitter multiple-receiver multistatic radar system. The conclusion of this paper can be used in the analysis of multistatic radar detection performance of rfraltiple unresolved targets, and will supply the sensor placement and waveform design of multistatic radar with reference.

关 键 词：多基地雷达 多发多收 模糊函数 分辨力 

分 类 号：TN95[电子电信—信号与信息处理]