摘要
强杂波背景下的雷达回波处理一直是雷达信号处理的难点和重要工作。对调频连续波雷达信号处理进行了详细分析,完成了中频采样、数字下变频、FFT处理、MTI/AMTI处理、反异步处理、CFAR和杂波图处理原理框图设计。通过对强杂波背景下FMCW雷达低小慢目标的探测能力分析,提升了强杂波背景下对近距离小木船及海面漂浮的浮筒等低小慢目标的探测能力。为复杂海洋环境下FMCW雷达低小慢目标探测提供了一种新方法。
Radar echo processing in strong clutter background has always been a difficult and important work of radar signal processing.Firstly,the signal processing of FMCW radar is analyzed in detail.Then the principle block diagram design of IF sampling,digital down conversion,FFT processing,MTI/AMTI processing,anti-asynchronous processing,CFAR and clutter map processing is completed.Finally,the detection of low small slow targets by FMCW radar could improve the detection ability of low small slow targets such as short range small wooden ships and floating buoys on the sea under strong clutter background.Thus,a new method is provided for FMCW radar to detect low small slow targets in complex marine environment.
作者
薛卫东
王文军
秦征
彭炳江
李百社
秦光明
XUE Weidong;WANG Wenjun;QIN Zheng;PENG Bingjiang;LI Baishe;QIN Guangming(Shaanxi Changling Electronic Technology Co.,Ltd.,Baoji 721006,China)
出处
《无线电工程》
北大核心
2023年第12期2872-2877,共6页
Radio Engineering
基金
陕西省重点研发计划项目(2020ZDLGY02-07,2023-YBGY-044)。
关键词
强杂波
线性调频
高速AD采样
FFT处理
信号处理算法
低小慢目标探测
strong clutter
linear frequency modulation
high-speed AD sampling
FFT processing
signal processing algorithms
low small slow target detection
