一种零陷展宽稳健旁瓣相消算法

刘子威; 苏洪涛; 胡勤振

doi:10.11999/JEIT150686

一种零陷展宽稳健旁瓣相消算法

doi: 10.11999/JEIT150686

基金项目:

国家自然科学基金(61372134, 61401329)

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- 被引次数: 0
出版历程
- 收稿日期: 2015-06-08
- 修回日期: 2015-11-25
- 刊出日期: 2016-03-19

Robust Sidelobes Cancellation Algorithm with Null Broadening

Funds:

The National Natural Science Foundation of China (61372134, 61401329)

摘要

摘要: 受到实际条件的限制，自适应旁瓣相消器通常不可能频繁地更新自适应权值，使得其在对抗空域非平稳干扰时，会出现权值失配现象，严重影响干扰抑制性能。该文从空域密集干扰产生宽零陷的角度出发，提出一种适用于自适应旁瓣相消器的零陷展宽算法。该算法通过对主通道的合成权值和辅助天线间的协方差矩阵同时进行锥削实现零陷展宽，锥削向量和锥削矩阵只与阵元位置和展宽宽度有关，可以离线计算，在线直接调用，实现简单，适合工程实际使用。仿真实验证明，该文方法可以有效展宽自适应零陷，增强自适应旁瓣相消器对抗空域非平稳干扰时的稳健性。
- 阵列信号处理 /
- 非平稳干扰抑制 /
- 自适应旁瓣相消器 /
- 零陷展宽
Abstract: In practical application, the adaptive weight of the sidelobe canceller can not be updated frequently. Thus, the spatial nonstationary interference would lead to the mismatch between the weight and the snapshots, which seriously deteriorates the cancellation performance of the sidelobe canceller. A null broadening algorithm is proposed for the sidelobe canceller, which is performed by tapering the conventional beamformer output and the covariance matrix of the auxiliary elements simultaneously. The taper vector and matrix only depend on the elements location and null width meaning that they can be designed offline and are quite suitable for practical use. Simulation results verify the effectiveness of the proposed method.
- Array signal processing /
- Nonstationary interference cancellation /
- Adaptive sidelobe canceller /
- Null broadening

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参考文献(24)

GENG Zhe, DENG Hai, and HIMED B. Adaptive radar beamforming for interference mitigation in radar-wireless spectrum sharing[J]. IEEE Signal Processing Letters, 2015, 22(4): 484-488.

LIU Jun, LI Hongbin, and HIMED B. Joint design of transmit and receive beamforming for interference mitigation[C]. 2014 International Radar Conference, Lille, 2014: 1-5.

YANG Yunchuan, SUN Cong, ZHAO Hui, et al. Algorithms for secrecy guarantee with null space beamforming in two-way relay networks[J]. IEEE Transactions on Signal Processing, 2014, 62(8): 2111-2126.

HUANG Lei, ZHANG Jing, XU Xu, et al. Robust adaptive beamforming with a novel interference-plus-noise covariance matrix reconstruction method[J]. IEEE Transactions on Signal Processing, 2015, 63(7): 1643-1650.

武思军, 张锦中, 张署. 阵列波束的零陷加宽算法研究[J]. 哈尔滨工程大学学报, 2004, 25(5): 658-661.

WU Sijun, ZHANG Jinzhong, and ZHANG Shu. Research on beamforming of wide nulling algorithm[J]. Journal of Harbin Engineering University, 2004, 25(5): 658-661.

刘福来, 孙长银, 汪晋宽. 基于半定规划的零陷控制方法[J]. 东北大学学报(自然科学版), 2011, 32(10): 1386-1389.

LIU Fulai, SUN Changyin, and WANG Jinkuan. Nulls control method based on semidefinite programming[J]. Journal of Northeastern University (Natural Science), 2011, 32(10): 1386-1389.

范展, 梁国龙, 王逸林. 一种零陷展宽鲁棒自适应波束形成算法[J]. 电子与信息学报, 2013, 35(11): 2764-2770. doi: 10.3724/SP.J.1146.2013.00087.

FAN Zhan, LIANG Guolong, and WANG Yilin. Robust adaptive beamforming with null widening[J]. Journal of Electronics Information Technology, 2013, 35(11): 2764-2770. doi: 10.3724/SP.J.1146.2013.00087.

李文兴, 毛晓军, 孙亚秀. 一种新的波束形成零陷展宽算法[J]. 电子与信息学报, 2014, 36(12): 2882-2888. doi: 10.3724/SP.J.1146.2013.02018.

LI Wenxing, MAO Xiaojun, and SUN Yaxiu. A new algorithm for null broadening beamforming[J]. Journal of Electronics Information Technology, 2014, 36(12): 2882-2888. doi: 10.3724/SP.J.1146.2013.02018.

MAILLOUX R J. Covariance matrix augmentation to produce adaptive array pattern troughs[J]. Electronics Letters, 1995, 31(10): 771-772.

ZATMAN M. Production of adaptive array troughs by dispersion synthesis[J]. Electronics Letters, 1995, 31(25): 2141-2142.

GUERCI J R. Theory and application of covariance matrix tapers for robust adaptive beamforming[J]. IEEE Transactions on Signal Processing, 1999, 47(4): 977-985.

梁国龙, 韩博, 范展. 近场自适应波束形成的零陷展宽方法[J]. 华中科技大学学报(自然科学版), 2013, 41(8): 34-39.

LIANG Guolong, HAN Bo, and FAN Zhan. Null broadening of near-field adaptive beamforming[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2013, 41(8): 34-39.

李荣峰, 王永良, 万山虎. 自适应天线方向图干扰零陷加宽方法研究[J]. 现代雷达, 2003, 25(2): 42-45.

LI Rongfeng, WANG Yongliang, and WAN Shanhu. Research on adaptive pattern null widening techniques[J]. Modern Radar, 2003, 25(2): 42-45.

LI Zhaozhan, YOU Jun, and CAI Xingyu. Nulling broadening technology based on circular array adaptive beamforming[C]. 2012 IEEE 14th International Conference on Communication Technology (ICCT), Chengdu, 2012: 1123-1128.

LI Rongfeng, ZHAO Shifeng, and DAI Lingyan. An adaptive-adaptive beamforming algorithm with nulls widening[C]. 2nd International Congress on Image and Signal Processing, CISP09, Tianjin, 2009: 1-5.

SU Hongtao, LIU Hongwei, SHUI Penglang, et al. Adaptive beamforming for nonstationary HF interference cancellation in skywave over-the-horizon radar[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(1): 312-324.

卢毛毛. 自适应干扰相消研究[D]. [硕士论文], 西安电子科技大学, 2013.

LU Maomao. The research of adaptive jamming cancellation[D]. [Master. dissertation], Xidian University, 2013.

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