基于引导信号修正的时域干扰阻塞方法

doi:10.3969/j.issn.1000-1093.2019.03.015

摘要/Abstract

摘要： 针对时域干扰阻塞方法导致的波束畸变和探测盲区问题，提出一种基于引导信号修正的时域干扰阻塞方法。该方法根据处理数据频带构造引导信号；在干扰角度处，利用时域干扰阻塞方法对引导信号进行处理，得到相应波束；通过Kalman滤波器对该波束进行光滑处理，得到干扰阻塞波束衰减曲线；采用波束衰减曲线对干扰阻塞输出波束进行非线性化处理，以实现波束优化，减小波束畸变和探测盲区，达到预期的干扰阻塞效果和探测效果。数值仿真和数据处理结果表明，该方法通过构造引导信号优化时域干扰阻塞方法，衰减区间缩小到5°；降低时域干扰阻塞方法形成的“宽凹”或“凸”字型波束对目标探测结果的影响，实现了波束校正；减小探测盲区，对原衰减区间内的弱目标实现了有效探测。

关键词: 时域干扰阻塞, 波束畸变, 探测盲区, 引导信号, 衰减曲线, 波束校正

Abstract: A modified time domain interference blocking method based on guiding signal is proposed for the beam distortion and detection blind zone due to time domain interference blocking. The proposed method is used to generate a guiding signal according to the frequency band of processing data, and process the guiding signal at the interference angle, thus obtaining a beam. Then Kalman filter is used to process the beam to obtain the attenuation curve of the beam after interference blocking. The attenuation curve is used to nonlinearly process the output beam, reduce the beam distortion and detection blind zone, and achieve the expected results of interferences block and detection. The numerically simulated and data processing results show that the proposed method can be used to attenuate the original attenuation interval to 5°, achieve the beam correction, reduce detection blind zone, and achieve the detection of weak targets in old attenuation interval. The proposed method is used to avoid the impact of “wide concave” or “convex” beam generated by the time domain interference blocking method on target. Key

Key words: timedomaininterferenceblocking, beamdistortion, detectionblindzone, guidingsignal, attenuationcurve, beamcorrection

中图分类号:

TB566

郑恩明，陈新华，李嶷. 基于引导信号修正的时域干扰阻塞方法[J]. 兵工学报, 2019, 40(3): 561-569.

ZHENG Enming, CHEN Xinhua, LI Yi. Modified Time Domain Interference Blocking Method Based on Guiding Signal[J]. Acta Armamentarii, 2019, 40(3): 561-569.

参考文献

［1］ YANG X P, ZHANG Z A, ZENG T, et al. Mainlobe interference suppression based on eigen-projection processing and covariance matrix reconstruction［J］. IEEE Antennas and Wireless Propagation Letters, 2014, 13(1): 1369-1272.
［2］ LU L J, LIAO Y P. Improved algorithm of mainlobe interference suppression based on eigen-subspace［C］∥Proceedings of International Conference on Communication & Signal Processing. Melmaruvathur, Tamilnadu, India: IEEE,2016:133-137.
［3］ QIAN J H, HE Z H. Mainlobe interference suppression with eigenprojection algorithm and similarity constraints［J］. Electronics Letters, 2016,52(3): 228-230.
［4］ WANG Y S, BAO Q L, CHEN Z P. Robust mainlobe interference suppression for coherent interference environment［J］.EURASIP Journal of Advances in Signal Processing,2016,10(1):135-138
［5］ WANG Y S, BAO Q L, CHEN Z P. Multiple mainlobe interferences suppression based on subspace matrix filtering and covariance matrix reconstruction［J］. Journal of Applied Remote Sensing, 2016, 10(3):35-42.
［6］郝文涛,张群,罗迎,等. 基于特征投影预处理零陷加深的抗主瓣干扰算法［J］. 空军工程大学学报, 2018,19(1):54-59.
HAO W T, ZHANG Q, HE Y, et al. Mainlobe jamming suppression algorithm based on eigen-projection preprocessing and augment of null depth［J］.Journal of Air Force Engineering University,2018,19(1):54-59. (in Chinese)
［7］ YU S J, LEE J H. Efficient eigenspace-based array signal processing using multiple shift invariant subarrays［J］. Antenna Propagation, 1999, 47(1): 186-194.
［8］李荣峰, 王永良, 万山虎. 一种在主瓣干扰条件下稳健的自适应波束形成方法［J］. 系统工程与电子技术, 2002, 24(7): 61-64.
LI R F, WANG Y L, WAN S H. Robust adaptive beam forming under mainlobe interference conditions［J］. Systems Engineering and Electronics, 2002, 24(7):61-64.(in Chinese)
［9］李荣峰, 王永良, 万山虎. 主瓣干扰下自适应方向图保形方法的研究［J］. 现代雷达, 2002, 24(3):50-53.
LI R F, WANG Y L, WAN S H.Research of reshaping adapted pattern under mainlobe interference conditions［J］. Modern Radar, 2002, 24(3): 50-53. (in Chinese)

［10］苏保伟, 王永良, 李荣峰, 等. 阻塞矩阵方法对消主瓣干扰［J］. 系统工程与电子技术, 2005, 27(11):1830-1832.
SU B W, WANG Y L, LI R F, et al. Main-lobe interference cancelling method via block matrix［J］. Systems Engineering and Electronics, 2005, 27(11):1830-1832. (in Chinese)
［11］王纯, 徐婷婷. Householder干扰阻塞法的弱信号DOA估［J］. 计算机工程与应用, 2013, 49(22): 231-235.
WANG C, XU T T. DOA estimation of weak signal based on Householder jamming jam method［J］. Computer Engineering and Applications, 2013, 49 (22): 231-235. (in Chinese)
［12］陈辉, 苏海军. 强干扰信号背景下的DOA估计新方法［J］. 电子学报, 2006, 34(3): 530-534.
CHEN H, SU H J. A new approach to estimate DOA in presence of strong jamming / signal suppression［J］. Acta Electronica Sinica, 2006, 34 (3): 530-534. (in Chinese)
［13］罗丁利, 徐伟. 一种阻塞矩阵的构建方法［J］. 火控雷达技术, 2009, 38(4): 53-56.
LUO D L, XU W. Construction method of a block matrix［J］. Fire Control Radar Technology, 2009, 38(4):53-56. (in Chinese)
［14］李嶷,陈新华,孙长瑜,等. 声纳中具方向性宽带强干扰的实时抑制方法［J］.应用声学,2008,27(4):257-263.
LI Y, CHEN X H, SUN C Y, et al. Real-time cancellation of directional wideband interference in sonar［J］. Applied Acoustics,2008,27(4):257-263. (in Chinese)
［15］许稼, 高阳, 贾鑫, 等. 基于信干噪比增益的自适应阵列抗干扰性能分析［J］. 北京理工大学学报(自然科学版), 2015, 35(7): 49-54.
XU J, GAO Y, JIA X, et al. Anti-jamming performance analysis of adaptive array based on signal-to-interference-noise ratio gain［J］. Journal of Beijing Institute of Technology (Natural Sciences Edition), 2015, 35(7): 49-54. (in Chinese)
［16］高阳, 许稼, 贾鑫, 等. 自适应阵列抗干扰性能的解析定量分析［J］. 电波科学学报, 2015, 30 (4): 729-735.
GAO Y, XU J, JIA X, et al. Quantitative analysis via analytic expressions for anti-jamming performance of adaptive array［J］. Chinese Journal of Radio Science, 2015, 30(4): 729-735. (in Chinese)
［17］高阳, 许稼, 龙腾. 阻塞矩阵抗干扰方法性能分析［J］. 信号处理, 2015, 31(10): 1361-1365.
GAO Y, XU J, LONG T. Performance analysis of anti-jamming method via block matrix［J］. Journal of Signal Processing, 2015, 31(10):1361-1365. (in Chinese)
［18］葛士斌, 陈新华, 孙长瑜. 具有良好宽容性的逆波束形成干扰抑制算法研究［J］. 电子与信息学报, 2015, 37(2): 380-385.
GE S B, CHEN X H, SUN C Y. The research on the algorithm of inverse beamforming for interference suppression with good robust［J］. Journal of Electronics & Information Technology, 2015, 37(2): 380-385. (in Chinese)
［19］葛士斌,余华兵,陈新华,等.基于协方差矩阵的干扰阻塞算法［J］.科技导报,2015,33(19):78-83.
GE S B, YU H B, CHEN X H, et al. Jamming jam method based on covariance matrix［J］. Science & Technology Review, 2015,33(19):78-83. (in Chinese)
［20］王麟煜，郑恩明，陈新华，等. 干扰阻塞算法衰减区间分析及改善方法研究［J］. 振动与冲击，2018，37（14）：108-114，148.
WANG L Y， ZHENG E M， CHEN X H， et al. Attenuation interval analysis of the jamming jam algorithm and its improvement［J］. Journal of Vibration and Shock, 2018, 37(14): 108-114, 148. (in Chinese)
［21］戴文舒,陈新华,孙长瑜,等. 自适应Alpha-beta 修正的线谱检测后置处理方法［J］. 电子与信息学报, 2014, 36(10): 2419-2424.
DAI W S, CHEN X H, SUN C Y, et al. A post-processing method for line spectrum detection corrected by adaptive alpha-beta filter［J］. Journal of Electronics & Information Technology, 2014, 36(10): 2419-2424. (in Chinese)

第40卷
第3期2019 年3月兵工学报ACTA
ARMAMENTARIIVol.40No.3Mar.2019