摘要
研究了线性调频连续波(Linear Frequency Modulated Continuous Wave,LFMCW)体制的近感探测雷达在探测超近距高速目标场景中的应用。通过仿真分析了射频链路低频泄露对近距和高速目标回波探测的影响,设计了采用适中调制信号重复频率和较高调频斜率的下扫频锯齿波波形,提高对超近距高速目标的探测能力,通过双调频周期解速度模糊算法,对高速目标进行准确测速,实现了在目标相对速度1000 m/s场景下,近距探测盲区小于0.5 m。
The application of linear frequency modulated continuous wave radar in the detection of ultra-close and high-speed targets is studied.The influence of low-frequency leakage of RF links on echo detection of ultra-close and high-speed targets is analyzed by simulation.The down-sweep saw-tooth wave with moderate modulation signal repetition frequency and high-frequency modulation slope is designed to realize ultra-close detection of high-speed targets.The speed fuzzy algorithm of double frequency modulation periodic solution is designed to realize accurate speed measurement of high-speed targets.The close detection dead zone is less than 0.5 meters in the scenario of a target relative speed of 1000 m/s.
作者
杜冠霖
王嫚玉
张睿恒
胡洲勇
张书强
周瑞
赵意鹏
DU Guanlin;WANG Manyu;ZHANG Ruiheng;HU Zhouyong;ZHANG Shuqiang;ZHOU Rui;ZHAO Yipeng(Beijing Institute of Remote Sensing Equipment,Beijing 100854;Beijing Institute of Technology,Beijing 100081;University of Electronic Science and Technology of China,Chengdu 611731)
出处
《飞控与探测》
2025年第4期71-77,共7页
Flight Control & Detection
基金
国防科技重点实验室基金(6142601012402)。
关键词
线性调频连续波
近感探测雷达
高速目标
超近距探测
盲区
linear frequency modulated continuous wave
proximity detection radar
high-speed target
ultra-close detection
dead zone
