Online DOA Estimation of Coherent Signal Based on TSVD
Xia Zhang · Science Technology and Engineering · 2013
For the DOA(Direction of arrival) estimation of coherent signal,a new method for decorrelation is proposed.Obtain the largest eigenvector of the covariance matrix by the use of the snapshot data received by the array to.Then a new toeplitz matrix by the largest eigenvector is build,at least acquire the DOA through the singular value decomposition of the new matrix.The computer simulation shows that this method can make effective estimation of the coherent signal,and is of the real-time.It can reduce the complexity of the calculation effectively as well.Under the low SNR scenarios and the few snaps,it shows the more excellent estimation performance compared with the TSVD.