Abstract:

For the need of coherent signal source bearing and tracking, a fast decorrelation power iterative subspace tracking algorithm based on array virtually removing is put forward, combining the array virtually removing with the power iterative method together. The algorithm reconstructs the data covariance matrix, achieves decorrelation without array aperture loss and improves the source number up to M-1, and also avoids EVD and spectrumpeak searching process. The propused algorith has a fast convergent speed and small computation burden, can meet the need for solving rank1 subspace estimation and tracking. Furthermore, this algorithm can also be applied in UCA. The simulation experiment results show that this algorithm is effective.