一种改进的迭代型鲁棒波束形成算法

doi:10.3969/j.issn.0372-2112.2017.12.003

电子学报 ›› 2017, Vol. 45 ›› Issue (12): 2842-2847.DOI: 10.3969/j.issn.0372-2112.2017.12.003

一种改进的迭代型鲁棒波束形成算法

金伟¹, 赵建勋², 张峰干², 贾维敏¹, 姚敏立²

1. 火箭军工程大学初级指挥学院, 陕西西安 710025;
2. 火箭军工程大学信息工程系, 陕西西安 710025

收稿日期:2016-05-17 修回日期:2017-02-12 出版日期:2017-12-25
- 作者简介:
- 金伟,男,1984年4月生,湖北襄阳人,火箭军工程大学初级指挥学院讲师,研究方向为阵列信号处理,雷达信号处理.E-mail:jinweimail@126.com;赵建勋,男,1981年2月生,河北辛集人,火箭军工程大学信息工程系博士研究生,研究方向为阵列信号处理;张峰干,男,1985年7月生,河南宜阳人,火箭军工程大学信息工程系讲师,研究方向为宽带移动卫星通信,阵列信号处理;贾维敏,女,1971年2月生,河北故城人,火箭军工程大学初级指挥学院教授,博士生导师,研究方向为宽带移动卫星通信,阵列信号处理;姚敏立,男,1966年10月生,山西长治人,火箭军工程大学信息工程系教授,博士生导师,研究方向为宽带移动卫星通信,阵列信号处理.
- 基金资助:
- 国家自然科学基金 (No.61179004）

Modified Iterative Robust Beamforming Algorithm

JIN Wei¹, ZHAO Jian-xun², ZHANG Feng-gan², JIA Wei-min¹, YAO Min-li²

1. Elementary Command College, Rocket Force University of Engineering, Xi'an, Shaanxi 710025, China;
2. Department of Information Engineering, Rocket Force University of Engineering, Xi'an, Shaanxi 710025, China

Received:2016-05-17 Revised:2017-02-12 Online:2017-12-25 Published:2017-12-25
- Supported by:
- National Natural Science Foundation of China (No.61179004)

摘要/Abstract

摘要： 为有效克服模型失配误差对自适应波束形成器的影响，该文提出了一种改进的迭代型鲁棒波束形成算法.该算法以导向矢量在期望信号来波方向区间宽度内、外的积分关系式构造新的终止条件，克服了迭代对角加载算法对终止条件参数鲁棒性不强的问题，从而进一步提高了波束形成器的输出信干噪比.仿真实验表明，提出的算法可以有效克服不同类型的模型失配误差带来的影响，能够处理较大范围的方向失配误差，且对算法中的来波方向区间宽度这一关键参数设置具有较强的鲁棒性.

关键词: 波束形成, 鲁棒, 对角加载, 迭代

Abstract: To effectively overcome the influence of model mismatch on the performance of adaptive beamformer,a modified iterative robust adaptive beamformer is proposed.Based on the integration of steering vector within or without the angular sector of desired signal's direction of arrival (DOA),a new stopping criterion is constructed in the proposed algorithm.Using the new stopping criterion,the weak robustness against stopping criterion parameter in iterative diagonally loaded sample matrix inverse (ILSMI) robust adaptive beamformer is strengthened,and the output signal-to-interference-and-noise ratio (SINR) is improved obviously.Simulation results show that the proposed algorithm can effectively improve the robustness of beamformer against different types of model mismatch.Moreover,the proposed algorithm can deal with DOA mismatch in large region,and the robustness against the angular sector of DOA is quite strong.

Key words: beamforming, robust, diagonal loading, iterative

中图分类号:

TN911.7

金伟, 赵建勋, 张峰干, 等. 一种改进的迭代型鲁棒波束形成算法[J]. 电子学报, 2017, 45(12): 2842-2847.

JIN Wei, ZHAO Jian-xun, ZHANG Feng-gan, et al. Modified Iterative Robust Beamforming Algorithm[J]. Acta Electronica Sinica, 2017, 45(12): 2842-2847.

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一种改进的迭代型鲁棒波束形成算法

Modified Iterative Robust Beamforming Algorithm

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