ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS
ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada === Robust adaptive beamforming using worst-case performance optimization is developed in recen...
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International Foundation for Telemetering
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ndltd-arizona.edu-oai-arizona.openrepository.com-10150-6045332016-04-07T03:01:15Z ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS Yudong, He Xianghua, Yang Jie, Zhou Banghua, Zhou Beibei, Shao Tsinghua University China Academy of Engineering Physics Newton recursive algorithm robust adaptive beamforming worst-case performance optimization broad nulls ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada Robust adaptive beamforming using worst-case performance optimization is developed in recent years. It had good performance against array response errors, but it cannot reject strong interferences. In this paper, we propose a scheme for robust adaptive beamforming with broad nulls to reject strong interferences. We add a quadratic constraint to suppress the power of the array response over a spatial region of the interferences. The optimal weighting vector is then obtained by minimizing the power of the array output subject to quadratic constrains on the desired signal and interferences, respectively. We derive the formulations for the optimization problem and solve it efficiently using Newton recursive algorithm. Numerical examples are presented to compare the performances of the robust adaptive beamforming with no null constrains, sharp nulls and broad nulls. The results show its powerful ability to reject strong interferences. 2007-10 text Proceedings 0884-5123 0074-9079 http://hdl.handle.net/10150/604533 http://arizona.openrepository.com/arizona/handle/10150/604533 International Telemetering Conference Proceedings en_US http://www.telemetry.org/ Copyright © held by the author; distribution rights International Foundation for Telemetering International Foundation for Telemetering |
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en_US |
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Newton recursive algorithm robust adaptive beamforming worst-case performance optimization broad nulls |
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Newton recursive algorithm robust adaptive beamforming worst-case performance optimization broad nulls Yudong, He Xianghua, Yang Jie, Zhou Banghua, Zhou Beibei, Shao ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
description |
ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada === Robust adaptive beamforming using worst-case performance optimization is developed in recent
years. It had good performance against array response errors, but it cannot reject strong
interferences. In this paper, we propose a scheme for robust adaptive beamforming with broad
nulls to reject strong interferences. We add a quadratic constraint to suppress the power of the
array response over a spatial region of the interferences. The optimal weighting vector is then
obtained by minimizing the power of the array output subject to quadratic constrains on the
desired signal and interferences, respectively. We derive the formulations for the optimization
problem and solve it efficiently using Newton recursive algorithm. Numerical examples are
presented to compare the performances of the robust adaptive beamforming with no null
constrains, sharp nulls and broad nulls. The results show its powerful ability to reject strong
interferences. |
author2 |
Tsinghua University |
author_facet |
Tsinghua University Yudong, He Xianghua, Yang Jie, Zhou Banghua, Zhou Beibei, Shao |
author |
Yudong, He Xianghua, Yang Jie, Zhou Banghua, Zhou Beibei, Shao |
author_sort |
Yudong, He |
title |
ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
title_short |
ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
title_full |
ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
title_fullStr |
ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
title_full_unstemmed |
ROBUST ADAPTIVE BEAMFORMING WITH BROAD NULLS |
title_sort |
robust adaptive beamforming with broad nulls |
publisher |
International Foundation for Telemetering |
publishDate |
2007 |
url |
http://hdl.handle.net/10150/604533 http://arizona.openrepository.com/arizona/handle/10150/604533 |
work_keys_str_mv |
AT yudonghe robustadaptivebeamformingwithbroadnulls AT xianghuayang robustadaptivebeamformingwithbroadnulls AT jiezhou robustadaptivebeamformingwithbroadnulls AT banghuazhou robustadaptivebeamformingwithbroadnulls AT beibeishao robustadaptivebeamformingwithbroadnulls |
_version_ |
1718216251042430976 |