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In this paper, we propose a robust sparse spectrum fitting method (RSpSF) for Directions-Of-Arrival (DOA) and power estimation in the presence of general form of modeling errors in the array manifold matrix. By exploiting the group sparsity between the power spectrum and the modeling errors, RSpSF formulates the estimator as a convex optimization program. Then, in order to reduce its computational...
The problem of direction of arrival (DOA) for multiple-input multiple-output (MIMO) array systems is considered, where orthogonal waveforms are transmitted simultaneously. A novel DOA estimation algorithm for collocated MIMO array is proposed. The proposed algorithm exploits the time delay to obtain two cross-correlation matrices, where the effect of additive noise is eliminated. Then we use singular...
In DOA estimation of wideband sources, Approximated Maximum Likelihood estimator (AML) has been shown to have the best performance. However, the computational load of AML is very high. In order to reduce its computational complexity, Markov Monte Carlo method with perfect sampling is introduced by the author to work with AML. And it results in a novel Approximated Maximum Likelihood DOA Estimator...
Since beamspace MUSIC (BM-MUSIC) method cannot resolve coherent sources, and the use of spatial smoothing pre-process leads to array aperture loss and reduction in detectable source numbers, a new beamspace MUSIC (BMC-MUSIC) method is presented for non-circular sources to this end. The proposed method exploits the characteristics of non-circular sources to construct conjugate symmetric Toeplitz matrix...
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