Journal of System Simulation
Abstract
Abstract: To solve the problems of the narrow-band signal DOA method, such as low resolution and unsuitable for applications with small number of snapshot and array elements, etc, DOA of uniform circular array based on improved smoothed l0 norm was proposed after analysis of the characteristics of UCA model and signal airspace sparse, combining with improved the smooth l0 norm algorithm. For reconstructing the signal, the method used the combined continuous function as the approximation to l0 norm by sparse matrix processing array manifold, which improved the convergence speed. It was also extended to the UCA DOA estimation, which avoided feature decomposition and spectral peak searching process. On the premise of guarantee the estimation precision, the calculation and the number of the array were effectively reduced. The feasibility and effectiveness of the method were verified by the experimental simulation.
Recommended Citation
Biao, Wang; Feng, Chen; and Li, Lu
(2020)
"DOA Estimation Method of Uniform Circular Array Based on Improved Smoothed l0 Norm,"
Journal of System Simulation: Vol. 29:
Iss.
10, Article 15.
DOI: 10.16182/j.issn1004731x.joss.201710015
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol29/iss10/15
First Page
2336
DOI Link
https://doi.org/10.16182/j.issn1004731x.joss.201710015
Last Page
2344
CLC
TP391.9
Recommended Citation
Wang Biao, Chen Feng, Lu Li. DOA Estimation Method of Uniform Circular Array Based on Improved Smoothed l0 Norm[J]. Journal of System Simulation, 2017, 29(10): 2336-2344.
DOI
10.16182/j.issn1004731x.joss.201710015
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