频率捷变雷达的扩展目标检测

doi:10.12305/j.issn.1001-506X.2022.06.08

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (6): 1833-1838.doi: 10.12305/j.issn.1001-506X.2022.06.08

频率捷变雷达的扩展目标检测

刘祥, 黄天耀*, 刘一民

清华大学电子工程系, 北京 100084

收稿日期:2021-01-07 出版日期:2022-05-30 发布日期:2022-05-30
通讯作者: 黄天耀
作者简介:刘祥(1993—), 男, 博士研究生, 主要研究方向为雷达信号处理、通信雷达一体化|黄天耀(1989—), 男, 助理研究员, 博士, 主要研究方向为雷达信号处理、波形设计和压缩感知|刘一民(1983—), 男, 副教授, 博士, 主要研究方向为雷达理论、统计信号处理、压缩感知及其在雷达中的应用、频谱感知和智能交通系统
基金资助:
国家自然科学基金(61801258)

Distributed target detection for frequency agile radars

Xiang LIU, Tianyao HUANG*, Yimin LIU

Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

Received:2021-01-07 Online:2022-05-30 Published:2022-05-30
Contact: Tianyao HUANG

摘要/Abstract

摘要：

本文研究频率捷变雷达的扩展目标检测问题。当频率捷变雷达的合成带宽较大时, 雷达目标会变成扩展目标, 导致雷达无法直接应用传统的恒虚警检测算法。针对这一问题, 本文建立了频率捷变雷达的扩展目标检测模型, 推导了基于广义似然比的检验统计量, 并且通过数值仿真展示了相应的检测概率和虚警概率。为了提升雷达的抗干扰能力和频谱利用率, 本文考虑了雷达只使用一部分发射频点的场景。数值结果表明, 在高信噪比下, 频率捷变雷达使用的发射频点越多、合成带宽越大时, 扩展目标检测的性能越好。

关键词: 频率捷变雷达, 扩展目标检测, 广义似然比, 合成带宽

Abstract:

This paper studies distributed target detection for frequency agile radars. When the synthetic bandwidth of frequency agile radars is large, radar targets become distributed targets, and thus the traditional constant false alarm rate detection methods fail. To deal with this problem, we formulate a distributed target detection model for frequency agile radars, derive the generalized likelihood ratio test statistic, and show the corresponding false alarm and detection rate by simulations. To improve the anti-jamming ability and the spectrum utilization efficiency of frequency agile radars, we consider the scenario in which only parts of the frequency points are transmitted. Numerical results reveal that under high signal-to-noise ratio, the distributed target detection performance improves as the synthetic bandwidth increases, namely more frequency points are transmitted.

Key words: frequency agile radar, distributed target detection, generalized likelihood ratio, synthetic bandwidth

中图分类号:

TN958.6

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.

Xiang LIU, Tianyao HUANG, Yimin LIU. Distributed target detection for frequency agile radars[J]. Systems Engineering and Electronics, 2022, 44(6): 1833-1838.

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参考文献 16

1	LIN C, TIAN R Q, BAO Q L, et al. Coherent integration method of frequency agile radar for target detection[C]//Proc. of the 6th Asia-Pacific Conference on Antennas and Propagation, 2018.
2	户盼鹤, 林财永, 鲍庆龙, 等. 基于非合作捷变频雷达的微弱目标检测算法[J]. 雷达科学与技术, 2015, 13 (5): 473- 478. doi: 10.3969/j.issn.1672-2337.2015.05.005
	HU P H , LIN C Y , BAO Q L , et al. A novel weak target detection method based on non-cooperative frequency agile radar[J]. Radar Science and Technology, 2015, 13 (5): 473- 478. doi: 10.3969/j.issn.1672-2337.2015.05.005
3	HUANG P H , LIN C Y , BAO Q L , et al. A coherent integration method for moving target detection using frequency agile radar[J]. IEEE Geoscience and Remote Sensing Letters, 2019, 16 (2): 206- 210. doi: 10.1109/LGRS.2018.2870869
4	ZHOU R X, XIA G F, ZHAO Y, et al. Coherent signal processing method for frequency-agile radar[C]//Proc. of the IEEE 12th International Conference on Electronic Measurement Instruments, 2015.
5	陈超, 郑远, 胡仕友, 等. 频率捷变反舰导弹导引头相参积累技术研究[J]. 宇航学报, 2011, 32 (8): 1819- 1825.
	CHEN C , ZHENG Y , HU S Y , et al. A study of coherent technique of frequency-agile radar for antiship missile[J]. Journal of Astronautics, 2011, 32 (8): 1819- 1825.
6	ZHAO D H, WEI Y S. Coherent process and optimal weighting for sparse frequency agility waveform[C]//Proc. of the IEEE Radar Conference, 2015.
7	PAN J M , ZHU Q , BAO Q L , et al. Coherent integration method based on radon-NUFFT for moving target detection using frequency agile radar[J]. Sensors, 2020, 20 (8): 2176. doi: 10.3390/s20082176
8	HUANG T Y, LIU Y M. Compressed sensing for a frequency agile radar with performance guarantees[C]//Proc. of the IEEE China Summit and International Conference on Signal and Information Processing, 2015.
9	HUANG T Y , LIU Y M , XU X Y , et al. Analysis of frequency agile radar via compressed sensing[J]. IEEE Trans.on Signal Processing, 2018, 66 (23): 6228- 6240. doi: 10.1109/TSP.2018.2876301
10	ZHANG G B, HUANG T Y, LIU Y M, et al. Frequency agile radar using atomic norm soft thresholding with modulations[C]//Proc. of the IEEE Radar Conference, 2019.
11	WANG L , HUANG T Y , LIU Y M . Phase compensation and image autofocusing for randomized stepped frequency ISAR[J]. IEEE Sensors Journal, 2019, 19 (10): 3784- 3796. doi: 10.1109/JSEN.2019.2897014
12	LI Y H, HUANG T Y, XU X Y, et al. Phase transition in frequency agile radar using compressed sensing[C]//Proc. of the IEEE Radar Conference, 2020.
13	WANG L, HUANG T Y, LIU Y M, et al. Theoretical analysis for extended target recovery using RSFRs[C]//Proc. of the IEEE International Conference on Signal, Information and Data Processing, 2019.
14	XIAO L , LIU Y M , HUANG T Y , et al. Distributed target detection with partial observation[J]. IEEE Trans.on Signal Processing, 2018, 66 (6): 1551- 1565. doi: 10.1109/TSP.2018.2791926
15	HUANG T Y , SHLEZINGER N , XU X Y , et al. Multi-carrier agile phased array radar[J]. IEEE Trans.on Signal Processing, 2020, 68, 5706- 5721. doi: 10.1109/TSP.2020.3026186
16	XU L Z , LI J . Iterative generalized-likelihood ratio test for MIMO radar[J]. IEEE Trans.on Signal Processing, 2007, 55 (6): 2375- 2385. doi: 10.1109/TSP.2007.893937

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频率捷变雷达的扩展目标检测

Distributed target detection for frequency agile radars

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