A Robust Algorithm for Adaptive Interference Cancellation
Yi Chu, Wei-Yau Horng · IEEE Transactions on Antennas and Propagation · 2008
A robust algorithm is introduced for adaptive beamformer in the presence of pointing errors. It preserves the desired signal and keeps nice interference nulling simultaneously. This advantage is achieved by incorporating spatial derivative constraints with injected noise and pseudo-interference. The resulted angular beamwidth is insensitive to the input signal-to-noise ratio.