High quality signal reception in the presence of stationary interference-a blind signal separation approach

This paper considers the problem of interference rejection using a sensor array with application to enhance signal reception. In contrast to conventional adaptive beamforming which requires knowledge of the array geometry and array response, we propose a two stage blind signal separation approach to achieve interference rejection. The proposed method is based on the practically viable assumptions that the desired signal is temporally non-stationary and that interference is temporally second-order stationary, and is applicable to arrays with uncalibrated response and geometry. Real-world experimental results are presented to demonstrate the performance of the proposed method