Robust blind adaptive beamforming for Doppler signals

被引：0
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作者：
National Lab for Radar Signal Processing, Xidian University, Xi'an 710071, China [1 ]
机构：
来源：
Dianbo Kexue Xuebao | 2006年 / 5卷 / 697-700+707期
关键词：
Adaptive systems - Algorithms - Computer simulation - Doppler radar - Errors - Evaluation - Frequencies - Robustness (control systems) - Signal processing;
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摘要：
Blind adaptive beamforming suffers from performance degradation in the presence of mismatch between the actual and presumed Doppler frequency of the desired signal. The performance of the algorithm by MMSE (minimum mean square error) criterion in the presence of mismatch of Doppler frequency is firstly evaluated, then, a robust scheme, in which estimated Doppler frequency on-line, is proposed to alleviate the degradation due to Doppler frequency error. Computer simulations show the validity of the proposed method.
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