摘要
基于水声信道的物理特性,对时变信道模型及其传输特性进行研究。在射线声学的理论基础上,结合时变信道的多普勒效应和多尺度多时延特征,通过VirTEX算法模拟出平静海面以及正弦起伏海面条件下的时变水声信道。通过发射信号和经过信道传输后,接收信号对信道的传输特性进行分析,即信道具有衰减特性、多径效应以及多普勒效应。
Based on the physical characteristics of underwater acoustic channel,the time-varying channel model and its transmission characteristics are studied in this paper.Based on the theory of ray acoustics,combined with the Doppler effect and multi-scale and multi-delay characteristics of time-varying channels,the time-varying underwater acoustic channels under the conditions of calm sea surface and sinusoidal undulating sea surface are simulated by VirTEX algorithm,and the transmission characteristics of the channels are analyzed by transmitting signals and receiving signals transmitted through the channels.That is,the channel has attenuation characteristics,multi-path effect and Doppler effect.
作者
朱艺佳
梁喆
侯朋
王文冠
李光远
ZHU Yi-jia;LIANG Zhe;HOU Peng;WANG Wen-guan;LI Guang-yuan(Dalian Scientific Test and Control Technology Institute,Dalian 116013,China)
出处
《舰船科学技术》
北大核心
2024年第8期137-142,共6页
Ship Science and Technology
关键词
水声信道
传输特性
信道建模
多普勒效应
多尺度多时延
underwater acoustic channel
transmission characteristics
channel modeling
Doppler effect
multiscale and multi-delay
