A robust beamformer with main beam control

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

6 Scopus Citations
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Author(s)

  • Bin Liao
  • Chongtao Guo
  • Lei Huang
  • Qiang Li
  • H. C. So

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publicationProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
PublisherIEEE Computer Society
Volume2016-September
ISBN (Print)9781509021031
Publication statusPublished - 15 Sep 2016

Publication series

Name
Volume2016-September
ISSN (Electronic)2151-870X

Conference

Title2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016
PlaceBrazil
CityRio de Rio de Janeiro
Period10 - 13 July 2016

Abstract

In this paper, a new robust beamforming approach which is capable of accurately controlling the main beam response is proposed. In this method, steering vector uncertainties are taken into account in the beamformer design problem with array magnitude response constraints. This allows us to control the main beam as prescribed. However, the resultant non-convex problem has a different formulation from that of the existing methods for robust beamforming with magnitude response constraints. Thus, existing techniques cannot be applied directly. To cope with this problem, the lower and upper norm bounds of the beamformer weight vector are first derived. The semidefinite relaxation technique is then employed as an approximate solver ending up with a grid search solution. Simulation results show that the proposed method is able to accurately control the main beam magnitude response in the presence of steering vector uncertainties.

Citation Format(s)

A robust beamformer with main beam control. / Liao, Bin; Guo, Chongtao; Huang, Lei; Li, Qiang; So, H. C.

Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop. Vol. 2016-September IEEE Computer Society, 2016. 7569642.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review