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Ultrasound Communic...
Ultrasound Communication Through Thin Plates: Understanding and Estimating the Channel
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- Ashraf, Asra (författare)
- Luleå tekniska universitet,Signaler och system
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- Carlson, Johan E., 1973- (författare)
- Luleå tekniska universitet,Signaler och system
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- Hagström, Björn (författare)
- Luleå tekniska universitet,Signaler och system
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- van de Beek, Jaap, Professor, 1967- (författare)
- Luleå tekniska universitet,Signaler och system
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(creator_code:org_t)
- IEEE, 2022
- 2022
- Engelska.
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Ingår i: 2022 IEEE International Ultrasonics Symposium (IUS). - : IEEE. - 9781665466578
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- As with all digital communications, understanding the propagation channel is essential. In this paper we present an analytical model of a channel consisting of a thin plate, including effects of frequency-dependent speed of sound and attenuation. We show how a compressed sensing approach can be used to estimate this channel impulse response from real measurements, even for cases when the plate thickness causes the reverberating pulses to overlap. The estimate can be seen as a sparsity constrained deconvolution of the combined impulse responses of the transmitting and receiving transducers. We then show with simulations that the proposed sparsity-constrained estimate is able to cope also in the presence of dispersion. We also analyze the performance of the proposed method both with simulations and experiments on 6 mm and 2 mm thick glass plate and 3 mm thick aluminum plate, and our results show that the model assumptions seems to hold.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Ultrasound communication
- OFDM
- Channel estimation
- Compressed sensing
- Signalbehandling
- Signal Processing
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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