RT Conference Proceedings
T1 A novel modulation approach based on nonlinear acoustic signals for underwater communications.
A1 Campo-Valera, María
A1 Diego-Tortosa, Dídac
A1 Asorey-Cacheda, Rafael
A1 Gómez-Tornero, José Luis
A1 Herrera-Fernández, Luis Jorge
K1 Acústica submarina
K1 Procesado de señales
K1 Acústica no lineal
K1 Ultrasonidos
AB Nonlinear acoustics is the catalyst of a new generation of applications that are exploited in different fields. The parametric nonlinear effect, i.e. the appearance of extra harmonics in the spectrum besides the fundamental frequency is a particular feature in nonlinear acoustic and it ca be used in the field of communications. In this sense, the study of modulation is an essential aspect that suits the needs of nonlinear acoustic communciations. This paper presents a novel technique of nonlinear paametric modulation-induced harmonics. This type of modulation provides a narrow directivity using low transmission frequencies (2 to 50 kHz). Its feasibility and the parametric effect are demostrated by analyzing a recorded 16-bit parametric signal and its spectrogram. Finally, detection performace is shown by applying cross.correlation to the received signal.
PB European Acoustics Association
YR 2023
FD 2023
LK https://hdl.handle.net/10630/38262
UL https://hdl.handle.net/10630/38262
LA eng
NO PID2019-103982RB-C42, and TED2021-129336B-I00 funded by MCIN/AEI/10.13039/501100011033 and is a results of an internship funded by the Autonomous Community of the Regio of Murcia through the Fundación Séneca - Agencia de Ciencia y Tecnología de la Región de Murcia (Seneca Foundation - Agency for Science and Technology in the Region of Murcia) and European Union NextGenerationEU programme.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 23 ene 2026