Adaptive wideband beamforming with robustness against presteering errors

被引：0
|
作者：
El-Keyi, Amr [1 ]
Kirubarajan, Thia [1 ]
Gershman, Alex. B. [2 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON, Canada
[2] Technol Univ Darmstadt, Inst Telecommun, Darmstadt, Germany
来源：
2006 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP PROCEEDINGS, VOLS 1 AND 2 | 2006年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
We develop a wideband adaptive beamformer with an improved robustness against presteering errors. The proposed beamformer employs the presteered broadband array processor and models the uncertainty in the array manifold as norm-bounded phase errors at the outputs of the presteering delay filters. A state-space model is developed for this robust beamforming problem, and an extended Kalman filter (EKF) is used to estimate the beamformer weight vector adaptively with a low computational complexity.
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页码：11 / +
页数：2
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