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Single Snapshot 2D-DOA Estimation in Wireless Location System

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Abstract

In this research paper, we have devised single-snapshot direction-of-arrival (DOA) algorithms for a uniform circular array (UCA) to resolve multiple targets. Estimation of signal parameters via rotational invariance technique (ESPRIT) and the modified multiple signal classification (MUSIC) algorithms are employed for high-resolution estimation of DOAs. Experimental results are shown to validate the efficacy of the proposed methods. Computer simulations prove that the proposed UCA-ESPRIT and the UCA-modified MUSIC algorithms using single snapshot provide the accurate estimation of DOAs but with the reduced computational complexity. The CPU time obtained using an intel i5 processor shows a significant reduction in computation time as compared to the classical methods. Hence the proposed DOA methods using single snapshot for UCA are suitable in wireless location systems when only a few snapshots or, in the worst case, a single snapshot of the antenna array is on hand for the signal estimation.

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Acknowledgements

The authors are thankful to the anonymous editors and reviewers. I am also thankful to Dr. Mukil Alagirisamy of Lincoln University College, Petaling Jaya, Kuala Lumpur, Malaysia for the helpful suggestions.

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  1. Department of Electronics and Communication Engineering, Lincoln University College, 47301, Petaling Jaya, Kuala Lumpur, Malaysia

    Veerendra Dakulagi

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Dakulagi, V. Single Snapshot 2D-DOA Estimation in Wireless Location System. Wireless Pers Commun 117, 2327–2339 (2021). https://doi.org/10.1007/s11277-020-07975-y

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