2024 04 v.47;No.316 43-49+81
基于圆循环恒虚警的多雷达信号被动检测方法
基金项目(Foundation):
邮箱(Email):
DOI:
10.16426/j.cnki.jcdzdk.2024.04.007
中文作者单位:
哈尔滨工程大学;北京航天长征飞行器研究所;
摘要(Abstract):
低截获概率(LPI)雷达由于具有发射功率较低的特点，使得雷达侦察接收机接收到的雷达信号信噪比较低，现有的被动检测方法无法有效检测微弱信号。针对此问题，在高斯白噪声背景下，提出了一种基于圆循环恒虚警率(CFAR)的多雷达信号被动检测方法，并分别对基于圆循环的单元平均恒虚警率(CA-CFAR)、最大选择恒虚警率(GO-CFAR)、最小选择恒虚警率(SO-CFAR)、有序统计恒虚警率(OS-CFAR)4种检测器的虚警概率与检测概率进行了推导。仿真结果表明，在高斯白噪声背景下，存在一个信号时，基于圆循环的CA-CFAR检测性能最优；存在多个信号时，基于圆循环的CA-CFAR检测性能较差，OS-CFAR检测性能更佳。此外，采用多帧检测可以进一步提高检测性能。所提方法复杂度较低且实时性较高，可满足工程实际需求。
关键词(KeyWords):
数字接收机;;低信噪比;;多信号;;信号检测;;圆循环;;恒虚警率
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参考文献
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[3] 李利，孙剑平，刘旭波，等.基于数字信道化接收和循环谱特征检测的短波频谱感知方法[J].中南大学学报(自然科学版),2013,44(10):4138-4143.
[4] GUO R,ZHANG Y,LIN Q Q,et al.A channelization-based DOA estimation method for wideband signals [J].Sensors,2016,16(7):1031-1048.
[5] 龚仕仙，魏玺章，黎湘.宽带数字信道化接收机综述[J].电子学报，2013,41(5):949-959.
[6] LUO Y,CHEN H,LI J.A new frequency domain CFAR algorithm in radar reconnaissance receiver[C]//2008 9th International Conference on Signal Processing.Beijing,China:IEEE Press,2008:2388-2391.
[7] GEROLEO F G,BRANDT-PEARCE M,BROWN C L.Detection and estimation of multi-pulse LFMCW radar signals[C]//2010 IEEE Radar Conference.Arlington,VA,USA:IEEE Press,2010:1009-1013.
[8] LIU X,FAN X,SU S.Adaptive pulse edge detection algorithm based on short-time Fourier transforms and difference of box filter[J].Journal of Applied Remote Sensing,2019,13(2):1-18.
[9] ALYT O A,OMAR A,ELSHERBENI A.Detection and localization of RF radar pulses in noise environments using wavelet packet transform and higher order statistics[J].Progress in Electromagnetics Research,2006,58:301-317.
[10] 熊达福，赵忠凯，杨健.基于数字信道化的弱信号检测方法研究与实现[J].火力与指挥控制，2018,43(12):73-77.
[11] 赵忠凯，弓浩，张然.基于顺序统计滤波和二元积累的辐射源信号检测方法[J].系统工程与电子技术，2022,44(4):1085-1092.
[12] 陈通，赵忠凯.基于数字信道化的雷达侦察与干扰系统设计[J].电子信息对抗技术，2020,35(4):5-8,52.
[13] 张嵘，肖先赐.任意中频带通信号多相数字下变频方法[J].电子与信息学报，2003(9):1285-1289.
[14] 石荣，吴聪.信噪比的不同定义及对调制识别性能评估的影响[J].通信技术，2019,52(7):1556-1562.
[15] 董晖，姜秋喜，毕大平.多相滤波宽带信道化数字接收机[J].雷达科学与技术，2007(1):73-77.
[16] 杭州加速科技有限公司.基于FPGA的数组排序方法、系统及数据压缩方法：CN202110668770.3[P].2021-09-17.
[17] LIU X,XU S,TANG S.CFAR strategy formulation and evaluation based on fox's H-function in positive alpha-stable sea clutter[J].Remote Sensing,2020,12(8):1273-1278.
[18] DONG Y.Distribution of X-band high resolution and high grazing angle sea clutter[R].Sydney,Australia:Defence Science and Technology Organisation Edinburgh (Australia) Electronic Warfare and Radar Division,2006.
[19] BAADECHE M,SOLTANI F.Performance analysis of mean level constant false alarm rate detectors with binary integration in weibull background[J].IET Radar Sonar and Navigation,2015,9(3):233-240.
基本信息:
DOI：10.16426/j.cnki.jcdzdk.2024.04.007
中图分类号:TN957.51;TJ761.1
引用信息:
[1]杨婧文,张昕雨,赵忠凯.基于圆循环恒虚警的多雷达信号被动检测方法[J].舰船电子对抗,2024,47(04):43-49+81.DOI:10.16426/j.cnki.jcdzdk.2024.04.007.
基金信息:
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