Compressed sensing for wideband wavenumber tracking in dispersive shallow water

The Journal of the Acoustical Society of America
Florent Le Courtois, J Bonnel

Abstract

In shallow water zones and at low frequency, seabed and water column properties can be estimated from the acoustic wavenumbers using inversion algorithms. When considering horizontal line arrays (HLA) and narrowband sources, the wavenumbers can be evaluated with classic spectral analysis methods. In this paper, a compressed sensing (CS) method for sparse recovery of the wavenumbers is proposed. This takes advantage of the few propagating modes and allows for spectral estimation when short HLA are used. The CS representation improves the wavenumber estimation, compared to the Fourier transform. However, for small arrays and several propagating modes, the CS generates interferences and does not allow proper wavenumber estimation. When considering broadband sources, it is possible to combine the wavenumbers estimated at several frequencies in order to build a frequency-wavenumber (f - k) representation. In this case, a post-processing tracking operation which improves the f - k resolution is presented. This relies on a general approach of waveguide physics and uses a particle filtering (PF) algorithm to track the wavenumbers. The consecutive use of CS and PF leads to a better wavenumber estimation. This methodology can be used for...Continue Reading

References

Feb 28, 2002·The Journal of the Acoustical Society of America·Tracianne B Neilsen, Evan K Westwood
Nov 7, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Franck D PhilippeDidier Cassereau
Jun 21, 2011·The Journal of the Acoustical Society of America·Rashi Jain, Zoi-Heleni Michalopoulou
May 10, 2013·The Journal of the Acoustical Society of America·Joel B Harley, José M F Moura
Jul 19, 2013·The Journal of the Acoustical Society of America·Julien BonnelN Ross Chapman
Mar 13, 2014·The Journal of the Acoustical Society of America·Tao Lin, Zoi-Heleni Michalopoulou
Mar 13, 2014·The Journal of the Acoustical Society of America·Caglar YardimJames Traer
Jul 6, 2014·The Journal of the Acoustical Society of America·Angeliki XenakiKlaus Mosegaard
Sep 23, 2014·The Journal of the Acoustical Society of America·Florent Le Courtois, Julien Bonnel
Jan 27, 2015·The Journal of the Acoustical Society of America·Joel B Harley, José M F Moura

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Citations

Feb 6, 2017·The Journal of the Acoustical Society of America·Kay L GembaPeter Gerstoft
Jun 3, 2018·The Journal of the Acoustical Society of America·Kailiang XuJean-Gabriel Minonzio
Jul 2, 2018·The Journal of the Acoustical Society of America·Peter GerstoftMichael Bianco
May 4, 2020·The Journal of the Acoustical Society of America·Yongsung ParkPeter Gerstoft
Jul 3, 2020·The Journal of the Acoustical Society of America·Haiqiang NiuHaibin Wang
May 10, 2019·The Journal of the Acoustical Society of America·Yongsung ParkWoojae Seong
Nov 4, 2020·The Journal of the Acoustical Society of America·Wei GaoHaozhong Wang
Mar 1, 2021·The Journal of the Acoustical Society of America·Yixin YangJianbo Zhou
Jul 10, 2021·The Journal of the Acoustical Society of America·Haiqiang NiuHaibin Wang

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