SDL阵列宽带零陷展宽波束形成

doi:10.3969/j.issn.0255-8297.2016.01.002

Abstract

Abstract: Traditional adaptive wideband beamforming is difficult to be implemented with hardware, and has narrow null width in direction of interference. To deal with the problem, a novel null broadening wideband beamforming algorithm based on spatial response variation (SRV) constraint is proposed. Tapped delay-lines based systems are replaced with a structure based on sensor delay-lines (SDL). At the reference frequency, the beam response in the direction of interference is limited by using a maximum constraint. An SRV constraint based algorithm is used to broaden the region of nulls. An optimal weight vector is obtained using a convex optimization tool. Simulation results show that, with the proposed algorithm, null broadening and constant beam width can be realized at the same time of wideband beamforming. When null width is set to 10° and null depth is -30 dB, a measured null width of 14.7° can be obtained, and the system has a high output signal to interference and noise ratio (SINR).

Key words: adaptive beamforming, sensor delay-lines (SDL) array, null-broaden, convex optimization

CLC Number:

TN911.72

ZHANG Wei, XU Lin, XU Quan-xin, WANG Yong. Null Broadening Wideband Beamforming for SDL Based Array[J]. Journal of Applied Sciences, 2016, 34(1): 12-21.

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: https://www.jas.shu.edu.cn/EN/10.3969/j.issn.0255-8297.2016.01.002

https://www.jas.shu.edu.cn/EN/Y2016/V34/I1/12

[1] 鄢社锋,马远良. 传感器阵列波束优化设计及应用[M]. 北京:科学出版社,2009.

[2] Liu W. Adaptive wideband beamforming with sensor delay-lines[J]. Signal Processing, 2009, 89(5):876-882.

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

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

[5] 李荣锋,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 R F, Wang Y L, Wang S H. Research on adapted pattern null widening techniques[J]. Modern Radar, 2003, 25(2):42-45. (in Chinese)

[6] 武思军,张锦中,张曙. 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 S J, Zhang J Z, Zhang S. Research on beamforming of wide nulling algorithm[J]. Journal of Harbin Engineering University, 2004, 25(5):658-661. (in Chinese)

[7] 谢红,李阳,赵宇宁. 大角度干扰抖动下的零陷展宽算法研究[J]. 应用科技,2007, 34(7):34-37. Xie H, Li Y, Zhao Y N. Research on widened nulling under drastic interference angle shaking[J]. Applied Science and Technology, 2007, 34(7):34-37. (in Chinese)

[8] 任超,吴嗣亮,王菊,李加琪. 抑制快速运动宽带干扰的稳健波束形成算法[J]. 系统仿真学报,2009, 21(13):4106-4109. Ren C, Wu S L, Wang J, Li J Q. Robusta adaptive beamforming algorithm for suppressing fast-moving broadband jamming[J]. Journal of System Simulation, 2009, 21(13):4106-4109. (in Chinese)

[9] 范展,梁国龙. 基于凸优化的最小旁瓣恒定束宽时域宽带波束形成[J]. 电子学报,2013, 41(5):943-948. Fan Z, Liang G L. Broadband beamforming with minimum sidelobe and constant beamwidth based on convex optimization[J]. Acta Electronica Sinica, 2013, 41(5):943-948. (in Chinese)

[10] 邹翔. 导向矢量失配时的零陷加宽联合稳健算法[J]. 通信对抗,2014, (1):12-15. Zou X. A joint robust algorithm for null widening under seering vector mismatches[J]. Communication Countermeasures, 2014, (1):12-15. (in Chinese)

[11] 张曙,栾晓明,李亮. 宽零点约束的圆阵宽带波束形成研究[J]. 哈尔滨工程大学学报,2014, 35(10):1260-1264. Zhang S, Luan X M, Li L. Research on circular array wideband beamforming with broad null constraints[J]. Journal of Harbin Engineering University, 2014, 35(10):1260-1264. (in Chinese)

[12] Liu F, Sun G, Wang J, Du R. Null broadening and sidelobe control algorithm via multiparametric quadratic programming for robust adaptive beamforming[J]. Applied Computational Electromagnetics Society Journal, 2014, 29(4):307-315.

[13] Duan H, Ng B P, See C M S. Applications of the SRV constraint in broadband pattern synthesis[J]. Signal Processing, 2008, 88(4):1035-1045.

[14] Boyd S P, Vandenberghe L. Convex optimization[M].[S.L.]:Cambridge University Press, 2004.

Null Broadening Wideband Beamforming for SDL Based Array

PDF

Knowledge

Abstract

Cite this article

share this article

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	TANG Lun1;2, LONG Ye-hua1, CHEN Qian-bin1, ZENG Xiao-ping2. Multi-objective Optimization of Cross-Layer Resource Allocation in Cooperative Relay Systems [J]. Journal of Applied Sciences, 2011, 29(4): 331-339.
[2]	GUO Yan, LI Ning, LI Li, FANG Da-gang, PEI Yu-ling. The Recursive Constant Modulus Algorithm for Fast Moving-Targets Tracking [J]. Journal of Applied Sciences, 2005, 23(2): 174-177.