多载频相位编码信号的多普勒处理研究  

Doppler Process Research of Multi-frequency Complementary Phase-coded Signal

作　　者：邓斌[1] 魏玺章[1] 霍凯[1] 黎湘[1] 刘丹 

机构地区：[1]国防科学技术大学四院空间所,湖南长沙410073 [2]南海舰队司令部第四处,广东湛江524001

出　　处：《现代电子技术》2011年第8期51-54,57,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(60872134);国家杰出青年科学基金(60025102)

摘　　要：由于多载频相位编码信号在频谱利用率、模糊函数以及包络峰均比三者之间达到了较好平衡,因而在近年来备受关注。针对这种雷达信号,研究基于子载频分离的脉冲多普勒处理技术,详细推导整个处理过程,分析速度对回波正交性及多普勒处理的影响,提出一种解决速度模糊的新方法。仿真分析表明,该方法能够较好地估计目标真实速度,对噪声具有一定的稳健性。The multi-frequency complementary phase-coded signal（MCPC） has caught much attention of researchers recently since it has gained good balance among spectrum efficiency,ambiguity function and peak-to-mean envelope power ratio（PMEPR）.Based on separation of sub carriers from multi-frequency structure,the pulse-Doppler processing method for such radar signal is introduced.After deducing the whole process and analyzing the orthogonality of echo affected by velocity,a new method of solving velocity ambiguity problem is presented.The simulation results show that this method can estimate the true velocity of target efficiently,and has good adaptability and stability against noise.

关 键 词：多载频相位编码信号 多普勒处理 回波正交性 解速度模糊 

分 类 号：TN951-34[电子电信—信号与信息处理]