This paper proposes a high-resolution DOA (Direction Of Arrival) estimation method using grouse and EM algorithms for low-cost array antenna system. The low-cost array antenna system, which uses less receiver modules ...
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ISBN:
(纸本)9781479952304
This paper proposes a high-resolution DOA (Direction Of Arrival) estimation method using grouse and EM algorithms for low-cost array antenna system. The low-cost array antenna system, which uses less receiver modules than array elements, often leads worse DOA estimation accuracy when comparing with the full-cost array antenna system. The proposed method first employs the modified grouse algorithm to pre-estimate DOAs, and then the EM algorithm is applied to further improve the DOA estimation accuracy. Performance of the proposed approach is evaluated through computer simulation.
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