摘要
频率编码脉冲信号是一种常用的LPI雷达信号,相较于传统PD雷达,频率编码脉冲信号在一个CPI内由一连串载频随编码序列随机跳变的窄脉冲组成,具有很大的合成带宽,大大降低了信号功率谱密度,使得带宽一定的截获接收机难以截获。同时,由于发射脉冲载频跳变,对于相同动目标不同脉冲回波叠加了不同的多普勒频移,传统PD雷达的动目标处理方法无法实现多普勒聚焦。提出一种基于速度搜索的频率编码脉冲多普勒雷达动目标检测方法,并从理论分析了算法性能,最后通过计算机仿真对算法性能进行了验证。
Frequency coded pulse(FCP) is a common radar wave with low probability of intercept. FCP is composed of a serial of narrow pulses whose carrier frequencies vary with codes compared with traditional PD radar. With wide bandwidth and low power density, FCP is not easily intercepted by receivers. As frequencies of transmitted pulses are different, the different reflected waves from the same target have different Doppler frequencies. Method for traditional PD MTI cannot realize Doppler focusing. A target detection method for FCP Doppler radar based on velocity searching is presented in the article. The assessment of the performance is conducted by computer simulation.
作者
戴健
高山钦
黄则贵
DAI Jian;GAO Shan-qin;HUANG Ze-gui(Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China;University of Electronic Science and Technology of China,Chengdu 611731,China;The PLA Military Representative Office in Chengdu,Chengdu 610036,China)
出处
《电子信息对抗技术》
2019年第3期14-18,23,共6页
Electronic Information Warfare Technology
