Acoustic Parametric Signal Generation for Underwater Communication

This paper presents a study of different types of parametric signals with application to underwater acoustic communications. In all the signals, the carrier frequency is 200 kHz, which corresponds to the resonance frequency of the transducer under study and different modulations are presented and co...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2018-07, Vol.18 (7), p.2149
Main Authors: Campo-Valera, María, Ardid, Miguel, Tortosa, Dídac D, Felis, Ivan, Martínez-Mora, Juan A, Llorens, Carlos D, Cervantes, Pablo
Format: Article
Language:English
Subjects:
Acoustic properties
Acoustics
Binary codes
Carrier frequencies
Directivity
parametric technique
Power efficiency
self-demodulation
Signal generation
underwater acoustic communication
Underwater acoustics
Underwater communication
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Summary:This paper presents a study of different types of parametric signals with application to underwater acoustic communications. In all the signals, the carrier frequency is 200 kHz, which corresponds to the resonance frequency of the transducer under study and different modulations are presented and compared. In this sense, we study modulations with parametric sine sweeps (4 to 40 kHz) that represent binary codes (zeros and ones), getting closer to the application in acoustic communications. The different properties of the transmitting signals in terms of bit rate reconstruction, directivity, efficiency, and power needed are discussed as well.
ISSN:1424-8220
1424-8220
DOI:10.3390/s18072149