A new DOA method on decorrelating strong correlation signal

DOA algorithm is the key algorithm in smart antennas to achieve the goal positioned accurately. The paper put forward a new DOA method based on Toeplitz matrix, which can decorrelate strong correlation signal effectively. The algorithm uses the internal relation of array receiving data to deal with noise subspace, then to complete the DOA estimation for coherent signals. The algorithm will not have aperture loss, and can distinguish between low SNR signal and strong correlation signal. Results are presented to illustrate the efficiency and accuracy of this method.