Title :
Recursive updating algorithm for robust Capon beamforming with steering vector mismatches
Author :
Mavrychev, Evgeny A.
Author_Institution :
Dept. of Informational Radio Syst., Nizhny Novgorod State Tech. Univ., Nizhny Novgorod, Russia
Abstract :
A new algorithm for robust adaptive beamforming is designed in this paper. It is assumed that steering vector is mismatches due to propagation effects, array calibration errors, etc. The proposed algorithm is based on recursive updating of sample covariance matrix and adaptive diagonal loading. New implementation of robust Capon beamformer (RCB) is more robustness to non-stationary interference environment. Simulation results confirm efficiency of recursive robust adaptive beamformer.
Keywords :
array signal processing; interference (signal); recursive functions; sensor arrays; RCB; adaptive diagonal loading; array calibration errors; nonstationary interference environment; recursive robust adaptive beamformer; recursive updating; recursive updating algorithm; robust capon beamforming; sample covariance matrix; steering vector mismatch; adaptive beamformer; recursive algorithm; robust processing; sensor array;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the Forty Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-5050-1
DOI :
10.1109/ACSSC.2012.6489139
