Abstract
It is very important in many applications to preserve a desired signal without distortion. This paper presents a robust adaptive beamforming method to extract a desired signal from the signals received by broadband arrays. The proposed method relaxes the requirement of approximate knowledge of the desired direction and the sensor gains and delays (phases). Also the method enhances the desired signal based on a focusing transform for that signal, requires less computation than the taped-delay-line beamforming method, and provides good results even in a multipath environment. Computer simulations are given to support the proposed method.
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On leave from the Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China.
Nanjing 210016, People's Republic of China.
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Zhang, M., Er, M.H. Robust adaptive beamforming for broadband arrays. Circuits Systems and Signal Process 16, 207–216 (1997). https://doi.org/10.1007/BF01183275
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DOI: https://doi.org/10.1007/BF01183275