机载相控阵雷达灵巧干扰信号模型及抑制方法研究0

doi:10.12305/j.issn.1001-506X.2021.02.08

摘要/Abstract

摘要：

目前对灵巧干扰的研究主要集中在常规地面雷达,对于机载雷达下的干扰模型及其抑制方法的研究较少。针对此种情况,建立了机载雷达背景下噪声卷积干扰、随机移频干扰和延时转发干扰3种典型灵巧干扰的空时信号模型,并从杂波自由度、空时功率谱图和距离-多普勒谱图的角度分析了干扰分布特性以及影响空时自适应处理(space-time adaptive processing, STAP)性能的内在机理,在此基础上提出了一种基于单元平均选小检测的机载雷达杂波和干扰同时抑制方法。该方法从杂波空时功率谱角度准确估计干扰来向,并据此形成干扰辅助波束,最后通过STAP实现干扰和杂波的有效抑制。仿真结果表明,所提方法相对于传统级联抑制方法,对延时转发灵巧干扰的抑制性能改善5 dB以上,验证了所提方法的有效性。

关键词: 机载相控阵雷达, 噪声卷积干扰, 随机移频干扰, 延时转发干扰, 干扰抑制

Abstract:

At present, the research on smart jamming mainly focuses on conventional ground radar, there are few studies on the jamming model and its suppression method under airborne radar. The space-time signal models of three typical smart jammings including noise convolution jamming, random frequency-shift jamming and time-delay repeater jamming under the background of airborne radar are established. Then, the distribution characteristics and the internal mechanism that affects the performance of space-time adaptive processing (STAP) are analyzed from the perspectives of clutter freedom degrees, space-time power spectrum and range-Doppler spectrum. On this basis, a simultaneous clutter and jamming suppression method for airborne radar based on the smallest of cell average detection is proposed. The method accurately estimates the jamming direction from the perspective of clutter space-time power spectrum and forms an jamming auxiliary beam accordingly. Finally, the effective suppression of jamming and clutter is achieved through STAP. The simulation results show that compared with the traditional cascade suppression method, the proposed method improves the suppression performance of time-delay repeater smart jamming by more than 5 dB, which verifies the effectiveness of the proposed method.

Key words: airborne phased array radar, noise convolution jamming, random frequency-shift jamming, time-delay repeater jamming, jamming suppression

中图分类号:

TN957

陈威, 张吉建, 谢文冲, 王永良. 机载相控阵雷达灵巧干扰信号模型及抑制方法研究0[J]. 系统工程与电子技术, 2021, 43(2): 343-350.

Wei CHEN, Jijian ZHANG, Wenchong XIE, Yongliang WANG. Research on smart jamming signal model and suppression method for airborne phased array radar[J]. Systems Engineering and Electronics, 2021, 43(2): 343-350.

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参考文献 27

1	WARD J.Space-time adaptive processing for airborne radar[R].MIT Lincoln Laboratory, 1994.
2	KLEMM R . Principles of space-time adaptive processing[M]. London: The Institution of Electrical Engineers, 2006.
3	SUN G H , HE Z S , TONG J , et al. Knowledge-aided covariance matrix estimation via kronecker product expansions for airborne STAP[J]. IEEE Geoscience Remote Sensing Letters, 2018, 15 (4): 527- 531. doi: 10.1109/LGRS.2018.2799329
4	YANG Z C , LAMARE R C . Enhanced knowledge-aided space-time adaptive processing exploiting inaccurate prior knowledge of the array manifold[J]. Digital Signal Processing, 2017, 60, 262- 276. doi: 10.1016/j.dsp.2016.10.005
5	YANG Z C , WANG Z T , LIU W J , et al. Reduced-dimension space-time adaptive processing with sparse constraints on beam-Doppler selection[J]. Signal Processing, 2019, 157, 78- 87. doi: 10.1016/j.sigpro.2018.11.013
6	MELVIN W L . A STAP overview[J]. IEEE Aerospace and Electronic System Magazine, 2004, 19 (1): 19- 35. doi: 10.1109/MAES.2004.1263229
7	SCHLEHER D C . Electronic warfare in the information age[M]. London: Artech House, 1999.
8	DAVID A . A second course in electronic warfare[M]. London: Artech House, 2004.
9	张嘉曦.对机载雷达STAP的干扰方法研究[D].西安:西安电子科技大学, 2018.
	ZHANG J X.Research on jamming method to airborne radar STAP[D].Xi'an: Xidian University, 2018.
10	李骥阳, 毛睿达, 汤建龙. 对空时自适应技术的卷积调制干扰研究[J]. 雷达科学与技术, 2018, 16 (5): 511- 516. doi: 10.3969/j.issn.1672-2337.2018.05.008
	LI J Y , MAO R D , TANG J L . Research on convolution modulation jamming for STAP technology[J]. Radar Science and Technology, 2018, 16 (5): 511- 516. doi: 10.3969/j.issn.1672-2337.2018.05.008
11	薛冰心, 张友益. 基于频移假目标对机载雷达STAP技术干扰效果的研究[J]. 舰船电子对抗, 2012, 35 (1): 11- 13. doi: 10.3969/j.issn.1673-9167.2012.01.003
	XUE B X , ZHANG Y Y . Research into the effect of false target jamming based on shift-frequency on airborne radar STAP technology[J]. Shipboard Electronic Counter-Measure, 2012, 35 (1): 11- 13. doi: 10.3969/j.issn.1673-9167.2012.01.003
12	赵燕慧, 汤建龙, 李骥阳, 等. 对降维STAP机载雷达的延时混叠转发干扰方法研究[J]. 系统工程与电子技术, 2020, 42 (8): 1718- 1725.
	ZHAO Y H , TANG J L , LI J Y , et al. Analysis of time-delay aliasing transmission jamming method for reduced dimension STAP airborne radar[J]. Systems Engineering and Electronics, 2020, 42 (8): 1718- 1725.
13	AKHTAR J . Orthogonal block coded ECCM schemes against repeat radar jammers[J]. IEEE Trans.on Aerospace and Electronic Systems, 2009, 45 (3): 1218- 1226. doi: 10.1109/TAES.2009.5259195
14	CHOI Y H . Repeated blocking based robust beamforming for coherent interference cancellation[J]. Digital Signal Processing, 2014, 36, 39- 45.
15	ZHANG J D , ZHU D Y , ZHANG G . New antivelocity deception jamming techniques using pulses with adaptive initial phases[J]. IEEE Trans.on Aerospace and Electronic Systems, 2013, 49 (2): 1290- 1300. doi: 10.1109/TAES.2013.6494414
16	YANG X P , YIN P L , ZENG T , et al. Applying auxiliary array to suppress mainlobe interference for ground-based radar[J]. IEEE Antennas and Wireless Propagation Letters, 2013, 12 (1): 433- 436.
17	马汇淼, 马林华, 甘元, 等. STAP技术在有源干扰环境下的运用方法[J]. 空军工程大学学报:自然科学版, 2012, 13 (3): 65- 69. doi: 10.3969/j.issn.1009-3516.2012.03.014
	MA H M , MA L H , GAN Y , et al. Application method of STAP technology in the presence of jammers[J]. Journal of Air Force Engineering University:Natural Science Edition, 2012, 13 (3): 65- 69. doi: 10.3969/j.issn.1009-3516.2012.03.014
18	文才, 王彤, 吴亿锋, 等. 极化-空域联合抗机载雷达欺骗式主瓣干扰[J]. 电子与信息学报, 2014, 36 (7): 1552- 1559.
	WEN C , WANG T , WU Y F , et al. Deceptive mainlobe jamming suppression for airborne radar based on joint processing in polarizational and spatial domains[J]. Journal of Electronics & Information Technology, 2014, 36 (7): 1552- 1559.
19	LUO M F , HAO Z M , ZHU Y M . Intelligent ECCM technology via cognition and agility for the airborne radar[J]. The Journal of Engineering, 2019, (20): 6656- 6659.
20	WEN C , HUANG Y , WU J X , et al. Cognitive anti-deception-jamming for airborne array radar via phase-only pattern notching with nested ADMM[J]. IEEE Access, 2019, 7, 153660- 153674. doi: 10.1109/ACCESS.2019.2948507
21	WEN C , PENG J Y , ZHOU Y , et al. Enhanced three-dimensional joint domain localized STAP for airborne FDA-MIMO radar under dense false-target jamming scenario[J]. IEEE Sensors Journal, 2018, 18 (10): 4154- 4166. doi: 10.1109/JSEN.2018.2820905
22	XU J W , LIAO G S , ZHU S Q , et al. Deceptive jamming suppression with frequency diverse MIMO radar[J]. Signal Processing, 2015, 113, 9- 17. doi: 10.1016/j.sigpro.2015.01.014
23	ZHAO L, MAO Y, DING J C.A STAP interference suppression technology based on subspace projection for BeiDou signal[C]//Proc.of the IEEE International Conference on Information and Automation, 2016: 534-538.
24	张煜, 杨绍全. 对线性调频雷达的卷积干扰技术[J]. 电子与信息学报, 2007, 29 (6): 1408- 1411. doi: 10.3969/j.issn.1001-2400.2007.02.010
	ZHANG Y , YANG S Q . Convolution jamming technique countering LFM radar[J]. Journal of Electronics & Information Technology, 2007, 29 (6): 1408- 1411. doi: 10.3969/j.issn.1001-2400.2007.02.010
25	宫健, 金虎兵, 郭艺夺. 一种多域复合调制的雷达灵巧干扰新方法[J]. 雷达科学与技术, 2016, 14 (2): 117- 120. doi: 10.3969/j.issn.1672-2337.2016.02.001
	GONG J , JIN H B , GUO Y D . A new method of multi-domain complex modulation for radar smart jamming[J]. Radar Science and Technology, 2016, 14 (2): 117- 120. doi: 10.3969/j.issn.1672-2337.2016.02.001
26	RICHARDSON P G . STAP covariance matrix structure and its impact on clutter plus jamming suppression solutions[J]. Electronics Letters, 2001, 37 (2): 118- 119. doi: 10.1049/el:20010090
27	MARSHALL D F.A two step adaptive interference nulling algorithm for use with airborne sensor arrays[C]//Proc.of the IEEE 7th SP Workshop on Statistical Signal and Array Processing, 1994: 301-304.

干扰类型	脉压增益	杂波自由度增加数目	距离-多普勒谱图	特性
压制噪声干扰	1	N_j(K-1)	距离和多普勒均连续分布	时域白化,空域相关
噪声卷积干扰	(T_n+τ)/(T_n+1/B)	N_j(K-1)	距离离散,多普勒连续	时域白化,空域相关
随机移频干扰	Bτ(1-\|Δf_j\|/B)	N_j	距离和多普勒均离散分布	时域部分相关,空域相关
延时转发干扰	Bτ	N_j	距离和多普勒均离散分布	时域相关,空域相关

参数	物理量	数值
系统参数	载机高度H/km	8
	载机速度V/m/s	140
	阵元数N/个	4×16
	脉冲数K/个	16
	脉冲重复频率f_r/Hz	4 869.6
	接收机带宽B/MHz	5
	脉冲宽度τ/μs	15
	波长λ/m	0.23
	主波束方位角θ₀/(°)	90
干扰机参数	干扰机距离R_j/km	370
	归一化空间频率f_sj	0.1
	功率谱密度S_j/W/Hz	10^-3
噪声卷积干扰	干扰数目/个	3
噪声卷积干扰	卷积噪声长度T_n/μs	15
随机移频干扰	干扰数目/个	3
	单个干扰包含的假目标数目/个	50
	移频范围f_j/Hz	-200~200
延时转发干扰	干扰数目/个	3
	单个干扰包含的假目标数目/个	50
	归一化多普勒频率	0.3

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