一体化接收中宽带雷达回波的子带处理结构  

An Sub-band Processing Structure of Wideband Radar Echo in Integrated Receiver

作　　者：颜坤玉[1,2] 姜秋喜[1] 沈爱国[1,2] 丁锋[1] 

机构地区：[1]电子工程学院电子系,合肥230037 [2]安徽电子制约技术重点实验室,合肥230037

出　　处：《现代雷达》2012年第8期67-71,共5页Modern Radar

摘　　要：研究了雷达与雷达对抗侦察一体化接收中的雷达回波接收问题,针对基于动态非均匀滤波器组的雷达与雷达对抗侦察一体化接收结构,提出了一种宽带雷达回波相关接收的子带处理结构。该算法将雷达发射信号波形通过分析滤波器组得到相应的子带匹配滤波器系数,实现了雷达回波匹配滤波的子带处理,解决了雷达带宽大于子带带宽时雷达回波匹配滤波的问题。从而使得雷达带宽不受一体化接收中子带频率宽度的影响,能够有效实现宽带雷达与雷达对抗侦察一体化接收。理论分析和仿真实验验证了该结构的有效性。Wideband radar echo receiving issues in integrated receiving structure of radar and radar countermeasure reconnaissance system based on dynamic nonuniform filter banks is studied , on the basis of which, a sub-band processing structure for coherent receiving of wideband radar echo is put forward. In this algorithm sub-band matched filter coefficients can be formed when transmit- ter waveform passes ana!yse filter banks. The problem of radar bandwidth wider than sub-band of receiver integrated radar and ra- dar countermeasure reconnaissance can be resolved as matched filter to radar echo by sub-band processing. The receiver technology integrated wideband radar and radar countermeasure reconnaissance can be realized because the bandwidth of radar is not decided by sub-band width of integrated receiver. Theoretical analysis and computer simulation have illustrated the validity of this matched filter algorithm based on sub-band processing.

关 键 词：一体化接收 匹配滤波 子带处理 调制滤波器组 多相分解 

分 类 号：TN974[电子电信—信号与信息处理]