Abstract:

DOA (direction of arrival) estimation of coherent signals is an important content in array signal processing，but the traditional algorithm is usually confined by the array manifold. In order to solve the problem of two dimensions DOA estimation for coherent signals with arbitrary plane array, a new algorithm is proposed. The corresponding correlation matrix is constructed using the characteristics of cyclostationary signals, then the coherence is solved using the difference in polarization. The proposed method can suppress noises does not need spatial smoothing, does not affect the aperture of the sensor array, and can be employed to both narrowband and wideband cases. Computer simulation results prove the effective performance of the method.