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.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/604533 |
| Date | 10 1900 |
| Creators | Yudong, He, Xianghua, Yang, Jie, Zhou, Banghua, Zhou, Beibei, Shao |
| Contributors | Tsinghua University, China Academy of Engineering Physics |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © held by the author; distribution rights International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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