Robust Adaptive Beamforming Using a Low-Complexity Steering Vector Estimation and Covariance Matrix Reconstruction Algorithm

Table 1

Deviations from the optimal SINR for training data size of and  dB.

Beamformers	Deviations (dB); at SNR = 0 dB	Deviations (dB); at SNR = 30 dB
Proposed	1.330	1.347
LSMI	12.277	57.511
Worst-case-based	3.139	21.768
ESB	2.949	45.948
SQP	3.755	43.308
Reconstruction-based	1.081	1.083
Beamformer in [13]	3.122	39.040