DOA estimation for low-cost array antenna system based on GROUSE and EM algorithms

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...

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Bibliographic Details
Published inAPCCAS : 2014 IEEE Asia Pacific Conference on Circuits and Systems : 17-20 November 2014 pp. 535 - 538
Main Authors Yamada, Keita, Ichige, Koichi
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.11.2014
Subjects
Accuracy
Antenna arrays
Arrays
Direction-of-arrival estimation
Estimation
Receivers
Signal to noise ratio
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DOI10.1109/APCCAS.2014.7032837

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Summary: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.
DOI:10.1109/APCCAS.2014.7032837