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2014-05-23
Space-Time Matrix Method for Mixed Near-Field and Far-Field Sources Localization
By
Progress In Electromagnetics Research M, Vol. 36, 131-137, 2014
Abstract
Mixed near-field and far-field sources localization problem has received significant attention recently in some practical applications, such as speaker localization using microphone arrays and guidance systems, etc. This paper presents a novel space-time matrix method to localize mixed near-field and far-field sources. Using the proposed method, both the direction-of-arrival (DOA) and range of a source can be estimated by the same eigen-pair of a defined spacetime matrix. Therefore, the pairing of the estimated angles and ranges is automatically determined. Compared with the previous work, the presented method offers a number of advantages over other recently proposed algorithms. For example, it can avoid not only parameters matching problem but also aperture loss problem. It has lower computational complexity since the proposed method does not require the high-order statistics or any parameter search. Simulation results show the performance of the proposed algorithm.
Citation
Ruiyan Du, Fulai Liu, and Jinkuan Wang, "Space-Time Matrix Method for Mixed Near-Field and Far-Field Sources Localization," Progress In Electromagnetics Research M, Vol. 36, 131-137, 2014.
doi:10.2528/PIERM14040203
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