子空间信号失配下的加权自适应检测器

doi:10.12305/j.issn.1001-506X.2023.07.07

系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (7): 1974-1980.doi: 10.12305/j.issn.1001-506X.2023.07.07

子空间信号失配下的加权自适应检测器

林志凯¹, 刘维建¹^,*, 钱李昌², 李槟槟¹, 周必雷¹, 张昭建¹, 陈浩¹

1. 空军预警学院, 湖北武汉 430019
2. 中国人民解放军31511部队, 北京 100144

收稿日期:2022-06-09 出版日期:2023-06-30 发布日期:2023-07-11
通讯作者: 刘维建
作者简介:林志凯(1993—), 男, 硕士, 主要研究方向为阵列信号处理
刘维建(1982—), 男, 副教授, 博士, 主要研究方向为雷达目标检测、阵列信号处理
钱李昌(1985—), 男, 高级工程师, 博士, 主要研究方向为雷达信号处理、联合训练
李槟槟(1990—), 男, 讲师, 博士, 主要研究方向为参数估计、雷达抗干扰
周必雷(1988—), 男, 讲师, 博士, 主要研究方向为雷达信号处理、阵列信号处理、雷达反干扰理论与技术
张昭建(1989—), 男, 讲师, 博士, 主要研究方向为雷达信号处理、雷达对抗理论与技术
陈浩(1993—), 男, 讲师, 硕士, 主要研究方向为阵列信号处理
基金资助:
国家自然科学基金(62071482)

A weighted adaptive detector for mismatched subspace signal detection

Zhikai LIN¹, Weijian LIU¹^,*, Lichang QIAN², Binbin LI¹, Bilei ZHOU¹, Zhaojian ZHANG¹, Hao CHEN¹

1. Air Force Early Warning Academy, Wuhan 430019, China
2. Unit 31511 of the PLA, Beijing 100144, China

Received:2022-06-09 Online:2023-06-30 Published:2023-07-11
Contact: Weijian LIU

摘要/Abstract

摘要：

对于多通道雷达系统, 通常存在阵元误差及旁瓣干扰, 此时雷达系统假定的目标导向矢量与真实值不同, 从而导致信号失配。针对子空间模型下的失配信号检测问题, 提出了一种具有恒虚警特性的加权自适应检测器, 得到了检测器解析的检测概率和虚警概率计算表达式。根据系统需要, 通过调整加权系数, 所提出的检测器能够实现对失配信号的灵活检测。此外, 对无信号失配的检测环境, 在合适的权系数下, 所提出的检测器能够提供比现有检测器更高的检测概率。

关键词: 信号失配, 自适应检测, 子空间信号, 恒虚警

Abstract:

For the multichannel radar system, array error and sidelobe interference often lead to signal mismatch, that is, the real steering vector of the target is different from the assumed value of the radar system. To solve the problem of mismatch signal detection with subspace model, a weighted adaptive detector with constant false alarm rate characteristics is proposed. Meanwhile, the analytical expressions of probabilities of detection and false alarm are derived. According to the needs of the system, the proposed detector can detect the mismatch signal flexibly by adjusting the weighted coefficient. In addition, for the detection problem without signal mismatch, the proposed detector, with an appropriate weight coefficient, can provide a higher probability detection than the existing detectors.

Key words: signal mismatch, adaptive detection, subspace signal, constant false alarm rate (CFAR)

中图分类号:

TN957.51

林志凯, 刘维建, 钱李昌, 李槟槟, 周必雷, 张昭建, 陈浩. 子空间信号失配下的加权自适应检测器[J]. 系统工程与电子技术, 2023, 45(7): 1974-1980.

Zhikai LIN, Weijian LIU, Lichang QIAN, Binbin LI, Bilei ZHOU, Zhaojian ZHANG, Hao CHEN. A weighted adaptive detector for mismatched subspace signal detection[J]. Systems Engineering and Electronics, 2023, 45(7): 1974-1980.

图/表 3

参考文献 33

1	刘祥, 黄天耀, 刘一民. 频率捷变雷达的扩展目标检测[J]. 系统工程与电子技术, 2022, 44 (6): 1833- 1838.
	LIU X , HUANG T Y , LIU Y M . Distributed target detection for frequency agile radars[J]. Systems Engineering and Electronics, 2022, 44 (6): 1833- 1838.
2	梁璞, 范红旗, 付强. 基于投影余角的多普勒雷达几何检测器[J]. 系统工程与电子技术, 2022, 44 (6): 1854- 1861.
	LIANG P , FAN H Q , FU Q . Geometric detector for Doppler radar based on projected complementary angle[J]. Systems Engineering and Electronics, 2022, 44 (6): 1854- 1861.
3	时艳玲, 王磊, 李君豪. 基于投影空间下奇异值分解的海面小目标CFAR检测[J]. 系统工程与电子技术, 2022, 44 (2): 512- 519.
	SHI Y L , WANG L , LI J H . CFAR detection for small targets on sea surface based on singular value decomposition in projection space[J]. Systems Engineering and Electronics, 2022, 44 (2): 512- 519.
4	邹鲲, 来磊, 骆艳卜, 等. 子空间约束秩1干扰下的雷达信号检测[J]. 系统工程与电子技术, 2022, 44 (1): 94- 99.
	ZOU K , LAI L , LUO Y B , et al. Radar signal detection with subspace constrained rank one interference[J]. Systems Engineering and Electronics, 2022, 44 (1): 94- 99.
5	杨威, 刘永祥, 付耀文, 等. 基于连续信任函数理论的鲁棒雷达目标检测方法[J]. 系统工程与电子技术, 2021, 43 (9): 2463- 2469.
	YANG W , LIU Y X , FU Y W , et al. Robust radar target detection method based on continuous belief function theory[J]. Systems Engineering and Electronics, 2021, 43 (9): 2463- 2469.
6	YANG S X , YI W , JAKOBSSON A . Multitarget detection strategy for distributed MIMO radar with widely separated antennas[J]. IEEE Trans.on Geoscience and Remote Sensing, 2022, 60, 5113516.
7	XIE L , HE Z S , TONG J , et al. Regularized covariance estimation for polarization radar detection in compound gaussian sea clutter[J]. IEEE Trans.on Geoscience and Remote Sensing, 2022, 60, 5109416.
8	SUN M R , LIU W J , LIU J , et al. Complex parameter Rao, Wald, Gradient, and Durbin tests for multichannel signal detection[J]. IEEE Trans.on Signal Processing, 2022, 70, 117- 131. doi: 10.1109/TSP.2021.3132485
9	ZHANG X R , MA X X , HUYAN N , et al. Spectral-difference low-rank representation learning for hyperspectral anomaly detection[J]. IEEE Trans.on Geoscience and Remote Sensing, 2021, 59 (12): 10364- 10377. doi: 10.1109/TGRS.2020.3046727
10	SHANG X D , SONG M P , WANG Y L , et al. Target-constrained interference-minimized band selection for hyperspectral target detection[J]. IEEE Trans.on Geoscience and Remote Sensing, 2021, 59 (7): 6044- 6064. doi: 10.1109/TGRS.2020.3010826
11	LIU W J , ZHANG Z J , LIU J , et al. Detection of a rank-one signal with limited training data[J]. Signal Processing, 2021, 186, 108120. doi: 10.1016/j.sigpro.2021.108120
12	CAO Z H , LI J J , SONG C Y , et al. Compressed sensing-based multitarget CFAR detection algorithm for FMCW radar[J]. IEEE Trans.on Geoscience and Remote Sensing, 2021, 59 (11): 9160- 9172.
13	LIU W J , LIU J , HAO C P , et al. Multichannel adaptive signal detection: basic theory and literature review[J]. Science China: Information Sciences, 2022, 65 (2): 121301.
14	刘维建, 简涛, 杨海峰, 等. 适用于子空间信号失配的参数可调多通道自适应检测器[J]. 电子与信息学报, 2016, 38 (12): 3011- 3017.
	LIU W J , JIAN T , YANG H F , et al. Tunable multichannel adaptive detector for mismatched subspace signals[J]. Journal of Electronics & Information Technology, 2016, 38 (12): 3011- 3017.
15	KELLY E J . An adaptive detection algorithm[J]. IEEE Trans.on Aerospace and Electronic Systems, 1986, 22 (1): 115- 127.
16	ROBEY F C , FUHRMANN D R , KELY E J , et al. A CFAR adaptive matched filter detector[J]. IEEE Trans.on Aerospace and Electronic Systems, 1992, 28 (1): 208- 216.
17	KRAUT S , SCHARF L L . The CFAR adaptive subspace detector is a scale-invariant GLRT[J]. IEEE Trans.on Signal Processing, 1999, 47 (9): 2538- 2541.
18	DE M . Rao test for adaptive detection in Gaussian interference with unknown covariance matrix[J]. IEEE Trans.on Signal Processing, 2007, 55 (7): 3577- 3584.
19	高永婵, 潘丽燕, 李亚超, 等. 空/时对称阵列雷达非高斯杂波背景下多秩距离扩展目标检测方法[J]. 雷达学报, 2022, 11 (5): 765- 777.
	GAO Y C , PAN L Y , LI Y C , et al. Multi-rank range-spread target detection method for space/time symmetric array radar under non-Gaussian clutter background[J]. Journal of Radars, 2022, 11 (5): 765- 777.
20	赵宜楠, 庞晓宇, 王军, 等. 严重拖尾杂波中距离扩展目标的自适应极化检测[J]. 哈尔滨工业大学学报, 2014, 46 (4): 70- 74.
	ZHAO Y N , PANG X Y , WNAG J , et al. Adaptive polarimetric detection of range spread targets in heavy-tailed compound-Gaussian clutter[J]. Journal of Harbin Institute of Technology, 2014, 46 (4): 70- 74.
21	GINI F , FARINA A . Vector subspace detection in compound-Gaussian clutter part Ⅰ: survey and new results[J]. IEEE Trans.on Aerospace and Electronic Systems, 2002, 38 (4): 1295- 1311.
22	PASTINA D , LOMBARDO P , BUCCIARELLI T . Adaptive polarimetric target detection with coherent radar part Ⅰ: detection against Gaussian background[J]. IEEE Trans.on Aerospace and Electronic Systems, 2001, 37 (4): 1194- 1206.
23	LIU J , ZHANG Z J , YANG Y . Optimal waveform design for generalized likelihood ratio and adaptive matched filter detectors using a diversely polarized antenna[J]. Signal Processing, 2012, 92 (4): 1126- 1131.
24	KRAUT S , SCHARF L L . Adaptive subspace detectors[J]. IEEE Trans.on Signal Processing, 2001, 49 (1): 1- 16.
25	LIU W J , XIE W C , LIU J , et al. Adaptive double subspace signal detection in Gaussian background—part Ⅰ: homogeneous environments[J]. IEEE Trans.on Signal Processing, 2014, 62 (9): 2345- 2357.
26	ZEIRA A, FRIEDLANDER B. Robust adaptive subspace detectors for space time processing[C]//Proc. of the IEEE International Conference on Acoustics, Speech and Signal Processing, 1998.
27	PULSONE N B , RADER C M . Adaptive beamformer orthogonal rejection test[J]. IEEE Trans.on Signal Processing, 2001, 49 (3): 521- 529.
28	BANDIERA F , BESSON O , RICCI G . An ABORT-like detector with improved mismatched signals rejection capabilities[J]. IEEE Trans.on Signal Processing, 2008, 56 (1): 14- 25.
29	LIU W J , XIE W C , LIU J , et al. Adaptive double subspace signal detection in Gaussian background—part Ⅱ: partially homogeneous environments[J]. IEEE Trans.on Signal Processing, 2014, 62 (9): 2358- 2369.
30	LIU J , LI K , ZHANG X C , et al. A weighted detector for mismatched subspace signals[J]. Signal Processing, 2017, 140, 110- 115.
31	LIU W J , LIU J , HUANG L , et al. Distributed target detectors with capabilities of mismatched subspace signal rejection[J]. IEEE Trans.on Aerospace and Electronic Systems, 2017, 53 (2): 888- 900.
32	LIU W J , LIU J , ZHANG C , et al. Performance prediction of subspace-based adaptive detectors with signal mismatch[J]. Signal Processing, 2016, 123, 122- 126.
33	KELLY E J, FORSYTHE K M. Adaptive detection and parameter estimation for multidimensional signal models[R]. Lexington: Lincoln Laboratory, 1989.

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子空间信号失配下的加权自适应检测器

A weighted adaptive detector for mismatched subspace signal detection

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