Efficient method of DOA estimation for coherent signal based on sparse signal reconstruction

Xiaoli Ren; Ji Wang; Shuangyin Liu; Lichen Wang

doi:10.1117/12.2244940

29 August 2016 Efficient method of DOA estimation for coherent signal based on sparse signal reconstruction

Xiaoli Ren, Ji Wang, Shuangyin Liu, Lichen Wang

Proceedings Volume 10033, Eighth International Conference on Digital Image Processing (ICDIP 2016); 1003359 (2016) https://doi.org/10.1117/12.2244940
Event: Eighth International Conference on Digital Image Processing (ICDIP 2016), 2016, Chengu, China

Abstract

We proposed an efficient method of direction of arrival (DOA) estimation for coherent signal based on sparse signal reconstruction. For the inter-atom interference of redundant dictionary affecting the feasibility of sparse signal reconstruction, in this paper, our method for the DOA estimation of coherent signal is based on regularized orthogonal matching pursuit (ROMP) algorithm by designing adaptive sensing dictionary to mitigate the inter-atom interference (AMIAI). Simulated results demonstrate effectiveness of the method by plotting spatial spectrum, by comparing the rootmean-square error (RMSE) of some methods and Cramér-Rao Lower Bound (CRLB) and by comparing the running time of some methods. Our approach makes effort to improve the estimation performance of algorithm and has overload capability.

Citation Download Citation

Xiaoli Ren, Ji Wang, Shuangyin Liu, and Lichen Wang "Efficient method of DOA estimation for coherent signal based on sparse signal reconstruction", Proc. SPIE 10033, Eighth International Conference on Digital Image Processing (ICDIP 2016), 1003359 (29 August 2016); https://doi.org/10.1117/12.2244940

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KEYWORDS

Reconstruction algorithms

Associative arrays

Monte Carlo methods

Signal to noise ratio

Computer simulations

Signal processing

Algorithms

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