双/多基地综合脉冲孔径地波雷达的信道化接收技术研究  

Channelized Receiver for Bi/Multi-Static Synthetic Impulse and Aperture Ground-Wave Radar

作　　者：陈伯孝[1] 陈多芳[1] 张红梅[1] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点试验室,陕西西安710071

出　　处：《电子学报》2006年第9期1566-1570,共5页Acta Electronica Sinica

基　　金：国防预研资助项目(No.40106020203)

摘　　要：双/多基地综合脉冲孔径地波雷达在发射站为多载频信号同时辐射,在接收站综合形成发射方向图之前需要对各发射信号分量进行分离.尽管采用数字混频和低通滤波器组可以对各发射分量进行分离,但运算量太大,难以实时实现.为此提出采用多相滤波器组信道化接收技术,设计该雷达的多相滤波器组信道化接收机.这种多相滤波器组信道化接收机与低通滤波器组信道化接收相比,运算量减少N2倍(N为信道数).最后给出了该雷达试验系统的实测数据处理结果,验证了这种多相滤波器组信道化接收技术在该雷达信号处理中的有效性.In bi/multi-static synthetic impulse and aperture ground-wave radar, multiple frequency-carrier signals are transmitted simultaneously by multiple antennas in the transmitting station. The returns of different carrier-frequency must be separated from one another before transmitting pattern is synthetically formed in the receiving station. Such a problem can be solved by adopting digital mixers and low-pass, but the amount of operation in this way is too large for real-time realization. Therefore, this paper presents the technique of channelized receiver based on multiphase filter bank. Compared with low-pass filter bank channelized receiver, the amount of operation of the multiphase filter bank receiver can be reduced by N^2（N is the number of channels）. At last, the results of real-data processing with experimental system of the radar are given, which will verify the validity of this technique in such a radar system.

关 键 词：综合脉冲孔径雷达 地波 双/多基地雷达 信道化接收机 多相滤波器组 

分 类 号：TN958[电子电信—信号与信息处理]