弹载雷达抗杂波高重频频率步进波形设计  

Waveform Design for Anti-clutter High Pulse Repetition Frequency Stepping Missile-borne Radar

作　　者：刘云涛[1,2] 陆满君 张文旭[1,2] 姚瑶 曲海山 LIU Yun-tao;LU Man-jun;ZHANG Wen-xu;YAO Yao;QU Hai-shan(School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China;Key Laboratory of Advanced Marine Communication and Information Technology,Ministry of Industry and Information Technology,Harbin Engineering University,Harbin 150001,Heilongjiang,China;Shanghai Radio Equipment Research Institute,Shanghai 201109,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学工业和信息化部先进船舶通信与信息技术重点实验室,黑龙江哈尔滨150001 [3]上海无线电设备研究所,上海201109

出　　处：《制导与引信》2021年第4期27-31,共5页Guidance & Fuze

基　　金：黑龙江省自然科学基金(LH2020F020)。

摘　　要：针对超低空突防对弹载雷达探测性能的影响,提出了一种小步进的高重频频率步进波形。利用频率步进波形在距离与速度维度的耦合特性,设计合理的波形参数,实现高速运动目标与主瓣杂波的分离,从而提高高分辨距离像的信杂比。该波形参数对接收机带宽、信号处理能力的要求不高,具有简单易行的优点。仿真结果验证了所提方法的有效性。Aiming at the influence of ultra-low altitude penetration on detection performance of missile-borne radar,a frequency stepping waveform with small step and high repetition frequency is proposed.Using the coupling characteristics of frequency stepping waveform in distance and velocity,reasonable waveform parameters are designed.The high speed moving target can be separated from the main lobe clutter,thus the signal-to-clutter ratio of high resolution range profile is improved.The waveform parameters have low requirements on receiver bandwidth and signal processing capability,and it is simple and easy to operate.Simulation and experimental results verify the effectiveness of the method.

关 键 词：雷达波形 频率步进信号 距离高分辨 杂波抑制 

分 类 号：TN952[电子电信—信号与信息处理]