Phase-coherent multichannel SDR - Sparse array beamforming
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A4 Artikkeli konferenssijulkaisussa
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Date
2020
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en
Pages
5
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28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings, pp. 1856-1860, European Signal Processing Conference
Abstract
We introduce a modular and affordable coherent multichannel software-defined radio (SDR) receiver and demonstrate its performance by direction-of-arrival (DOA) estimation on signals collected from a 7 X 3 element uniform rectangular array antenna, comparing the results between the full and sparse arrays. Sparse sensor arrays can reach the resolution of a fully populated array with reduced number of elements, which relaxes the required structural complexity of e.g. antenna arrays. Moreover, sparse arrays facilitate significant cost reduction since fewer expensive RF-IF front ends are needed. Results from the collected data set are analyzed with Multiple Signal Classification (MUSIC) DOA estimator. Generally, the sparse array estimates agree with the full array.Description
Keywords
Coherent receiver, DOA estimation, Sparse array
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Citation
Laakso, M, Rajamäki, R, Wichman, R & Koivunen, V 2020, Phase-coherent multichannel SDR - Sparse array beamforming . in 28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings ., 9287664, European Signal Processing Conference, European Association For Signal and Image Processing, pp. 1856-1860, European Signal Processing Conference, Amsterdam, Netherlands, 24/08/2020 . https://doi.org/10.23919/Eusipco47968.2020.9287664