| 连续波频率调制雷达频域恒虚警检测的研究 |
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| 引用本文： | 郑珊,司一冰,眭晓林,吴姿妍. 连续波频率调制雷达频域恒虚警检测的研究[J]. 激光与红外, 2016, 46(2): 182-186 |
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| 作者姓名： | 郑珊 司一冰 眭晓林 吴姿妍 |
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| 作者单位： | 固体激光技术重点实验室,北京 100015;营口市高级中学，辽宁 营口 115005 |
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| 摘 要： | 光纤光耦合技术及数字处理技术的进步使得基于光纤连续波频率调制(FMCW)雷达技术快速发展。针对激光雷达时域信号处理在远程目标探测中的不足,根据雷达传统时域中的多重门限以及FMCW雷达回波频谱的特点,使用了频域恒虚警率(Constant False Alarm Rate,CFAR)目标检测技术。该CFAR技术是基于对回波信号进行时频变换,并对其结果进行解析,得出目标的距离及速度信息，实现在恒定虚警概率的前提下最大化提高系统的探测率。
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| 关 键 词： | 激光雷达 FMCW； 恒虚警；频域 |
Study of all fiber FMCW radar CFAR detection |
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| ZHENG Shan,SI Yi-bing,SUI Xiao-lin,WU Zi-yan. Study of all fiber FMCW radar CFAR detection[J]. Laser & Infrared, 2016, 46(2): 182-186 |
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| Authors: | ZHENG Shan SI Yi-bing SUI Xiao-lin WU Zi-yan |
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| Affiliation: | Science and Technology on Solid-state Laser Laboratory,Beijing 100015;Yingkou Senior High School,Yingkou 115005,China |
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| Abstract: | Recent advances in fiber coupling technology and digital processing technology have enabled the fast development of fiber-based frequency modulated continuous wave radar technology.Based on traditional multi-threshold CFAR detection and characteristics of FMCW radar echo spectrum,the frequency-domain CFAR(Constant False Alarm Rate) target detection technology is used to cover the shortage of signal processing in time domain.This CFAR technique is based on the frequency transform,and the distance and speed information of the target are obtained through the analysis of echo signals.The maximize detection rate of the system is achieved under constant false alarm rate. |
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| Keywords: | laser radar FMCW CFAR frequency domain |
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