Application of Incoherent Multi-Frequency Signals for Information Transmission in a Nonstationary Hydroacoustic Environment

IF 0.9 4区物理与天体物理 Q4 ACOUSTICS Acoustical Physics Pub Date : 2023-11-16 DOI:10.1134/S1063771023700653

A. Yu. Rodionov, L. G. Statsenko, D. A. Kuzin, M. M. Smirnova

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Abstract—A class of digital incoherent methods of information transmission based on multi-frequency signals for mobile underwater complexes is presented, which does not require regular and accurate estimation of channel parameters and is a priori resistant to various types of interference in nonstationary hydroacoustic communication channels, and is oriented to solving communication and navigation problems for underwater robotic complexes. The limitation of spectral efficiency of such multi-frequency systems of information transmission by the value of 0.5 bits/s/Hz in various frequency ranges, nonstationary hydrological conditions, with achievement of the maximum range at acceptable levels of error probability during information decoding is shown. The operability of the proposed class of multi-frequency multiplexing methods was confirmed by numerical and in situ sea experiments on the shelf at distances from 2.5 to 7 km with the mutual drifting of ships and with sea waves of up to 3 points.

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非相干多频信号在非平稳水声环境信息传输中的应用

摘要:提出了一类基于多频信号的移动水下复合体数字非相干信息传输方法，该方法不需要对信道参数进行规则和精确估计，能够先验地抵抗非平稳水声通信信道中的各种干扰，面向解决水下机器人复合体的通信和导航问题。在各种频率范围、非平稳水文条件下，这种多频信息传输系统的频谱效率限制为0.5 bit /s/Hz，在信息解码过程中，在可接受的错误概率水平下实现最大范围。在距离2.5 ~ 7 km的陆架上进行了船舶相互漂移和海浪达3点的数值和现场海上实验，验证了所提出的多频复用方法的可操作性。

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来源期刊

Acoustical Physics 物理-声学

CiteScore

1.60

自引率

50.00%

发文量

审稿时长

3.5 months

期刊介绍： Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.