Optimal quiescent vectors for wideband ML beamforming in multipath fields
Signal Processing - Content-based image and video retrieval
Analysis of fast adaptive MI-NLMS beamforming algorithm for smart antenna system
ARP '08 Proceedings of the Fifth IASTED International Conference on Antennas, Radar and Wave Propagation
Robust adaptive beamforming algorithm under directional uncertainty
CCDC'09 Proceedings of the 21st annual international conference on Chinese control and decision conference
Robust adaptive beamforming under the quadratic inequality constraint
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Robust constrained least square constant modulus algorithm
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Robust Adaptive Beamforming Under Quadratic Constraint with Recursive Method Implementation
Wireless Personal Communications: An International Journal
Hi-index | 35.68 |
Minimum variance (MV) adaptive beamforming has been widely proposed for matched-field processing because it provides a means of suppressing ambiguous beampattern sidelobes. A difficulty with MV methods, however, is their sensitivity to signal wavefront mismatch. In this work, the performance of three robust MV methods and the Bartlett beamformer is evaluated using vertical array data from the Mediterranean Sea collected by the NATO SACLANT Centre. The three MV methods considered are: (1) the reduced MV beamformer (RMV), (2) the MV beamformer with neighborhood location constraints (MV-NLC), (3) the MV beamformer with environmental perturbation constraints (MV-EPC). While the Bartlett, RMV, and MV-NLC methods assume the ocean environment is known precisely, the MV-EPC method models the environment as being random with known statistics. Experimental and companion simulation results indicate that for modest environmental uncertainty, the MV-EPC beamformer achieves a higher probability of correct localization and better sidelobe performance than the other three methods