Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/27789
Appears in Collections:Computing Science and Mathematics Conference Papers and Proceedings
Author(s): Cuyt, Annie
Lee, Wen-shin
Tijskens, Engelbert
Hong, Wen-Ling
Wang, Jr-Ping
Cools, Tim
Geerts, Tim
Contact Email: wen-shin.lee@stir.ac.uk
Title: Superresolution underwater acoustics
Citation: Cuyt A, Lee W, Tijskens E, Hong W, Wang J, Cools T & Geerts T (2018) Superresolution underwater acoustics. In: Proceedings of Euronoise 2018. Euronoise 2018, 27.05.2018-31.05.2018. Crete, Greece: Hellenic Institute of Acoustics, pp. 2845-2850. http://www.euronoise2018.eu/docs/papers/469_Euronoise2018.pdf
Issue Date: 27-May-2018
Conference Name: Euronoise 2018
Conference Dates: 2018-05-27 - 2018-05-31
Abstract: We explore the application of some recent results in exponential analysis and sparse interpolation to underwater acoustics, in a joint effort from marine engineers and computational mathematicians. The fact that, in practice, the sampling rate used for the recording of an echoed signal is often a multiple of the Nyquist rate, is regarded as a constraint on the cost and performance of echo sounding devices. Here we illustrate how the latter can be overcome, using a new regular sampling scheme, that can even go well below the Nyquist rate. In the numerical examples an average of 20-25 % of the Nyquist rate is amply sufficient to reliably recognize and reconstruct the echo. The sparse sub-Nyquist method under consideration allows to recover from possible aliasing introduced by the subsampling. The technique does not need newly designed hardware, has low computational complexity and uses a small number of samples.
Status: VoR - Version of Record
Rights: The publisher has not responded to our queries therefore this work cannot be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
URL: http://www.euronoise2018.eu/docs/papers/469_Euronoise2018.pdf

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