水声通信的声参量信号产生。

Acoustic Parametric Signal Generation for Underwater Communication.

机构信息

Institut d'Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC), Universitat Politècnica de València (UPV), 46730 Gandia, València, Spain.

Laboratorio de Hidroacústica (LHA), Centro Tecnológico Naval y del Mar (CTN), Ctra El Estrecho-Lobosillo, Km. 2, 30320 Fuente Álamo, Murcia Spain.

出版信息

Sensors (Basel). 2018 Jul 4;18(7):2149. doi: 10.3390/s18072149.

DOI:10.3390/s18072149

PMID:29973519

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6068948/

Abstract

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.

摘要

本文研究了不同类型的参数信号，应用于水下声通信。在所有信号中，载波频率为 200 kHz，这对应于研究换能器的谐振频率，并提出和比较了不同的调制方式。在这方面，我们研究了具有参数正弦扫频（4 到 40 kHz）的调制方式，它们表示二进制代码（零和一），更接近声学通信中的应用。还讨论了发射信号在比特率重建、指向性、效率和所需功率方面的不同特性。