Abstract
A decorrelation algorithm UCA-TOEP for DOA estimation of uniform circular array (UCA) is proposed. After mode excitation method being used to change UCA into virtual uniform linear array, a special Toeplitz matrix is reconstructed in UCA-TOEP algorithm, and then DOA is estimated with MUSIC algorithm. Thus DOA of coherent signals could be effectively distinguished. Compared to virtual spatial smoothing algorithm, computation of UCA-TOEP is reduced and UCA-TOEP is with better performance in the condition of low SNR and few snapshots. Simulation results show that UCA-TOEP algorithm is feasible and it has better performance than spatial smoothing algorithm.
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Ji, C., Wu, M. (2011). DOA Estimation of UCA Based on Reconstructing Matrix. In: Lin, S., Huang, X. (eds) Advances in Computer Science, Environment, Ecoinformatics, and Education. CSEE 2011. Communications in Computer and Information Science, vol 215. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23324-1_56
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DOI: https://doi.org/10.1007/978-3-642-23324-1_56
Publisher Name: Springer, Berlin, Heidelberg
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