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Volume 20
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10.3390/s20030751
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Article

Reduction of the Multipath Propagation Effect in a Hydroacoustic Channel Using Filtration in Cepstrum

by
Agnieszka Czapiewska
1,
Andrzej Luksza
2,
Ryszard Studanski
2 and
Andrzej Zak
3,*
1
Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
2
Faculty of Electrical Engineering, Gdynia Maritime University, Morska 81-87, 81-255 Gdynia, Poland
3
Faculty of Mechanical and Electrical Engineering, Polish Naval Academy, Smidowicz 69, 81-127 Gdynia, Poland
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(3), 751; https://doi.org/10.3390/s20030751
Submission received: 21 December 2019 / Revised: 22 January 2020 / Accepted: 26 January 2020 / Published: 29 January 2020
(This article belongs to the Special Issue Signal Processing Techniques for Smart Sensor Communications)
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Abstract

During data transmission in a hydroacoustic channel, one of the problems is the multipath propagation effect, which leads to a decrease in the transmission parameters and sometimes completely prevents it. Therefore, we have attempted to develop a method, which is based on a recorded hydroacoustic signal, that allows us to recreate the original (generated) signal by eliminating the multipath effect. In our method, we use cepstral analysis to eliminate replicas of the generated signal. The method has been tested in simulation and during measurements in a real environment. Additionally, the influence of the method on data transmission in the hydroacoustic channel was tested. The obtained results confirmed the usefulness of the application of the developed method and improved the quality of data transmission by reducing the multipath propagation effect.
Keywords: hydroacoustic channel; sound propagation; multipath propagation; underwater communication; cepstrum hydroacoustic channel; sound propagation; multipath propagation; underwater communication; cepstrum

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MDPI and ACS Style

Czapiewska, A.; Luksza, A.; Studanski, R.; Zak, A. Reduction of the Multipath Propagation Effect in a Hydroacoustic Channel Using Filtration in Cepstrum. Sensors 2020, 20, 751. https://doi.org/10.3390/s20030751

AMA Style

Czapiewska A, Luksza A, Studanski R, Zak A. Reduction of the Multipath Propagation Effect in a Hydroacoustic Channel Using Filtration in Cepstrum. Sensors. 2020; 20(3):751. https://doi.org/10.3390/s20030751

Chicago/Turabian Style

Czapiewska, Agnieszka, Andrzej Luksza, Ryszard Studanski, and Andrzej Zak. 2020. "Reduction of the Multipath Propagation Effect in a Hydroacoustic Channel Using Filtration in Cepstrum" Sensors 20, no. 3: 751. https://doi.org/10.3390/s20030751

APA Style

Czapiewska, A., Luksza, A., Studanski, R., & Zak, A. (2020). Reduction of the Multipath Propagation Effect in a Hydroacoustic Channel Using Filtration in Cepstrum. Sensors, 20(3), 751. https://doi.org/10.3390/s20030751

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