外辐射源雷达的相干积累增益计算及性能分析  

Computation and Analysis of Coherent Accumulation Gain for Passive Radar

作　　者：高志文[1] 陶然[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《电子学报》2008年第6期1227-1230,共4页Acta Electronica Sinica

基　　金：国家杰出青年科学基金(No.60625104);国家自然科学基金(No.60232010);国防基础预研项目(No.A2220060039);北京理工大学优秀青年教师项目(No.2007YS0101)

摘　　要：本文在分析外辐射源雷达参考通道和目标回波通道信号特点的基础上,推导了外辐射源雷达的相干积累增益与参考通道信噪比、信号有效带宽和相干积累时间的关系,为预测其探测威力提供了理论基础.然后验证和分析了相干积累增益与参考通道信噪比之间的关系,并由此对外辐射源雷达布站的基线选择提出了一些建议.Based on analysis of the signal characteristic of the reference channel and the target echo channel for passive radar, we derive the relations of the coherent accumulation gain formula, the signal-to-noise ratio （SNR） of the reference channel, the effective bandwidth of the signal and the coherent accumulation time, which provides the theoretical base for predicting the detection performance of passive radar. Moreover, some suggestions for the baseline selection of passive radar are presented after the relations between the coherent accumulation gain and the SNR of the reference channel are verified and analyzed.

关 键 词：外辐射源雷达 相干积累增益 参考通道 基线选择 

分 类 号：TN958.97[电子电信—信号与信息处理]