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Subspace-based compressive sensing algorithm for raypath separation in a shallow-water waveguide

2021-03-26 02:55:28
Longyu Jiang, Zhe Zhang, Rui Jin, Xiao Zhou, Philippe Roux

Abstract

Compressive sensing (CS) has been applied to estimate the direction of arrival (DOA) in underwater acoustics. However, the key problem needed to be resolved in a {multipath} propagation environment is to suppress the interferences between the raypaths. Thus, in this paper, {a subspace-based compressive sensing algorithm that formulates the statistic information of the signal subspace in a CS framework is proposed.} The experiment results show that (1) the proposed algorithm enables the separation of raypaths that arrive closely at the {receiver} array and (2) the existing algorithms fail, especially in a low signal-to-noise ratio (SNR) environment.

Abstract (translated)

URL

https://arxiv.org/abs/2103.14236

PDF

https://arxiv.org/pdf/2103.14236.pdf


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