基于双不确定集约束的稳健宽带波束形成算法

doi:10.3969/j.iss.0372-2012-2014.03.025

电子学报 ›› 2014, Vol. 42 ›› Issue (3): 587-591.DOI: 10.3969/j.iss.0372-2012-2014.03.025

基于双不确定集约束的稳健宽带波束形成算法

陈明建, 罗景青

合肥电子工程学院, 安徽合肥 230037

收稿日期:2012-04-05 修回日期:2013-07-31 出版日期:2014-03-25
- 作者简介:
- 陈明建 男，1983年生于湖南常德，博士，讲师，研究方向为阵列信号处理.E-mail：cdcmj@126.com
- 基金资助:
- 国家自然科学基金 (No.61171170）

Robust Broadband Beamforming Algorithm Under the Double Uncertainty Set Constraints

CHEN Ming-jian, LUO Jing-qing

Electronic Engineering Institute of Hefei, Hefei, Anhui 230037, China

Received:2012-04-05 Revised:2013-07-31 Online:2014-03-25 Published:2014-03-25
- Supported by:
- National Natural Science Foundation of China (No.61171170)

摘要/Abstract

摘要： 针对传统不确定集约束稳健波束形成算法（S-WCRB）的性能依赖于模约束参数的问题，提出了双不确定集约束的稳健宽带波束形成（D-WCRB）算法.该算法将期望信号导向矢量约束于两个不同参数的球形不确定集中，解决模约束参数选择不当引起SINR性能下降的问题，推导了D-WCRB算法与S-WCRB算法获得不同SINR的必要条件，并讨论了D-WCRB算法中约束参数的选择问题.最后给出的数值仿真结果验证了该算法的有效性.

关键词: 稳健波束形成, 宽带, 导向矢量, 双不确定集约束

Abstract: Since the robust beamformer based on a single uncertainty set constraints was susceptible to the norm constraint parameter,a novel robust broadband beamforming algorithm based on the double uncertainty set constraints was proposed.In the case that the practical steering vector is constrained to two spherical uncertainty sets with different model parameter,the proposed method effectively overcomes the SINR degradation problem of the robust beamformer based on a single uncertainty set constraints.Moreover,a necessary condition under which the D-WCRB algorithm achieves different SINR performance from the S-WCRB algorithm was derived.The choices of constraint parameter were also discussed.Finally,simulation results demonstrate the effectiveness of the proposed algorithm.

Key words: robust beamforming, broadband, steering vector, double uncertainty set constraint

中图分类号:

TN911.7

陈明建, 罗景青. 基于双不确定集约束的稳健宽带波束形成算法[J]. 电子学报, 2014, 42(3): 587-591.

CHEN Ming-jian, LUO Jing-qing . Robust Broadband Beamforming Algorithm Under the Double Uncertainty Set Constraints[J]. Acta Electronica Sinica, 2014, 42(3): 587-591.

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基于双不确定集约束的稳健宽带波束形成算法

Robust Broadband Beamforming Algorithm Under the Double Uncertainty Set Constraints

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