一种二相码信号多普勒补偿方法的研究与实现  

A Doppler Compensation Method for Biphase Coded Signals

作　　者：田黎育[1] 高梅国[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《北京理工大学学报》2002年第6期757-760,785,共5页Transactions of Beijing Institute of Technology

基　　金：兵总预研项目

摘　　要：针对相位编码信号脉冲压缩技术中存在的多普勒失配问题,提出并实现一种基于数字动目标检测(DMTD)的二相码信号多普勒补偿方法.该方法通过DMTD分离不同速度目标的回波,然后对不同速度通道的回波信号进行相应的多普勒补偿,矫正了多普勒失配问题.对速度模糊情况下的多普勒补偿进行了研究,进一步扩展了多普勒补偿的频率范围.该方法已应用于某新型雷达信号处理机的研制,其有效性得到证实.Dopplermismatch exists in phase coded signal compression. A Doppler compensation method for biphase coded signal based DMTD is presented and realized. By DMTD, the echoes of targets of different speed are separated. Then, echoes in different speed channels are compensated respectively for Doppler frequency. Doppler compensation on the condition of speed ambiguity is studied and a way found to extend the Doppler compensation range. The method is used effectively in a new kind of radar signal processor.

关 键 词：多普勒补偿方法 二相码信号 脉冲压缩 多普勒频率 数字动目标检测 雷达信号处理 

分 类 号：TN958[电子电信—信号与信息处理] TN957.[电子电信—信息与通信工程]