伪码调相PD引信模拟回波伪码相关性的实现  

Realization of the code correlation of the simulated echo for the pseudorandom phase-coded PD fuze

作　　者：李加琪[1] 郑哲[1] 吴嗣亮[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《红外与激光工程》2007年第6期954-958,共5页Infrared and Laser Engineering

基　　金：工程技术改造项目

摘　　要：介绍了伪码调相PD雷达引信模拟回波相位编码相关性的实现方法。利用伪随机序列的性质,采用引信发射信号调相信息同步技术,消除了模拟系统自身延迟以及信号环路中其他路径延迟的影响,实现了具有相位编码相关性的相对引信天线零距离和极近距离体目标回波的模拟。采用了调相信息预置法,实现了对任意模糊距离上地海杂波的模拟,并使任意模拟距离上的杂波保持引信发射信号的0-π调相误差特征。An approach,which realizes the code correlation of the simulated echo for a kind of pseudorandom phase-coded PD （pulse Doppler） radar fuze, is presented. According to the characteristics of m sequence, by adopting the technology of the synchronization of the phase modulating signal of the fuze, the effect of inherent delay of the simulation system and other path delay is avoided, and the code correlation of zero delay or very close target signal are realized. A previous-phase-coding technology is used to simulate the clutter. This technique can make the clutter with different range ambiguities maintain the 0-π phase shifting error feature of the transmitting signal of fuze.

关 键 词：回波模拟 伪码调相 脉冲多普勒 雷达引信 近距离 杂波 相关性 

分 类 号：TN955[电子电信—信号与信息处理]