摘要
分析了伪码调相连续波雷达的性能,研究了伪码调相连续波雷达的工作原理,重点推导了伪码调相连续波雷达的模糊函数,进行了计算机仿真,并从13位Barker码调相信号仿真图和63位m序列调相信号仿真图的对比中得出了长码是伪码调相连续波雷达的最佳选择,而且为了实现更好的测距和测速的性能,必须在回波信号处理中加入旁瓣抑制电路,或选择更优的码型。
This paper analyzes the performance of the pseudo-random code continuous wave（PRC-CW） radar,researches the operation theory of PRC-CW radar,emphatically deduces the ambiguity function of PRC-CW radar,simulates the radar signal by computer,by comparing the simulation diagrams between 13-bit Barker code phase modulation signal and 63-bit m sequence phase modulation signal,proves out that the long code modulation signal simulation diagram is the best selection for PRC-CW radars,and in order to realize the better range measurement and speed measurement,the side-lobe restrain circuit has to be added or the better code be selected.
出处
《舰船电子对抗》
2011年第1期64-67,105,共5页
Shipboard Electronic Countermeasure
关键词
伪码调相连续波雷达
模糊函数
13位巴克码
pseudo-random code continuous wave radar
ambiguity function
13-bit Barker code
