双基机载雷达对地杂波的背面效应及其在GMTI中的应用  

Backside Effect of Bistatic Airborne Clutter Characteristics and Its Applications in GMTI

作　　者：宁蔚[1] 廖桂生[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室,陕西西安710071

出　　处：《电子学报》2005年第12期2242-2245,共4页Acta Electronica Sinica

基　　金：武器装备预研基金(No.51407030101DZ0120)

摘　　要：本文发现了双基地杂波谱的一个重要特征———背面效应(Backside effect).基于该特征,双基机载雷达的地杂波谱对齐就变得容易许多,从而使空时自适应处理技术在双基模式下的地面动目标检测中更好地发挥作用.本文利用背面效应而提出的基于角度-多普勒谱对齐的旋转谱对齐法,在实验结果中获得了明显的性能提高.This paper presents an important characteristic for the bistatic radar clutter spectrum,which is named backside effect. In such an effect, the range-dependent clutter spectra can be easily aligned,and space-time adaptive processing （STAP） is to be more applicable and effective for the ground moving target indication （GMTI） in bistatic systems.Based on backside effect,the spectrum ahgning-Angle-Doppler compensation （ADC） is progressed by additional rotation, i. e. ADCR, and this new spectrum aligning method is proved to gain a further performance improvement on GMTI by experiments.

关 键 词：双基机载雷达 地杂波谱 背面效应 空时自适应处理 地面动目标检测 

分 类 号：TN957[电子电信—信号与信息处理]