[12] [12] KEIZER W P M N.Large planar array thinning using iterative FFT techniques ［J］.IEEE Transactions on Antennas and Propagation, 2009, 57(10):3359-3362.

[13] [13] KEIZER W P M N.Amplitude-only low sidelobe synthesis for large thinned circular array antennas［J］.IEEE Transactions on Antennas and Propagation, 2012, 60(2):1157-1161.

[14] [14] YU Z L, SER W, ER M H, et al.Robust adaptive beamformers based on worst-case optimization and constraints on magnitude response［J］.IEEE Transactions on Signal Processing, 2009, 57(7):2615-2628.

[15] [15] NAI S E, SER W, YU Z L, et al.A robust adaptive beamforming framework with beampattern shaping constraints［J］.IEEE Transactions on Antennas and Propagation, 2009, 57(7):2198-2203.