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.
2024,46(8): 137-142 收稿日期：2023-5-28
DOI：10.3404/j.issn.1672-7649.2024.08.025
分类号：TB556
作者简介：朱艺佳(1997-),女,硕士,助理工程师,研究方向为水声信号处理
参考文献：
[1] 高思宇. 浅海声信道的信道响应估计研究[D]. 青岛: 中国海洋大学, 2014.
[2] 段乐峥. 基于BELLHOP的水声信道时变模型[J]. 电子世界, 2014, 12(9): 105-112.
DUAN Lezheng. Time-varying model of underwater acoustic channel based on BELLHOP[J]. Electronic World, 2014, 12(9): 105-112.
[3] BYUN S H, KIM S M, LIM Y K, et al. Time-varying underwater acoustic channel modeling for moving platform[C]// IEEE, Oceans, 2007.
[4] 裴月华, 苏为, 陶金成, 等. 一种时变海洋信道建模方法[J]. 系统仿真学报, 2020, 10(2): 20-26.
PEI Yuehua, SU Wei, TAO Jincheng, et al. A time-varying ocean channel modeling method[J]. Journal of System Simulation, 2020, 10(2): 20-26.
[5] QARABAQI P, STOJANOVIC M. Statistical characterization and computationally efficient modeling of a class of underwater acoustic communication channels[J]. IEEE Journal of Ocean Engineering, 2013, 38(4): 701-717.
[6] HUANG S H, YANG T C and XU W Tracking channel variations in a time-varying doubly-spread underwater acoustic channel[C]// Piscataway IEEE, 2015.
[7] 彭鹏菲, 丰少伟, 罗亚松. 稳定水声通信判决反馈盲均衡算法研究[J]. 电子设计工程, 2011, 38(3): 301-303.
PENG Pengfei, FENG Shaowei, LUO Yasong. Research on decision feedback blind equalization algorithm for stable underwater acoustic communication[J]. Electronic Design Engineering, 2011, 38(3): 301-303.
[8] 张之猛, 刘晨晨, 刘伯胜, 等. 一种水声多途信号的快速盲解卷积算法[J]. 数据采集与处理, 2009, 24(2): 134-139.
ZHANG Zhimeng, LIU Chenchen, LIU Bosheng, et al. A fast blind deconvolution algorithm for underwater acoustic multipath signals[J]. Data Acquisition and Processing, 2009, 24(2): 134-139.
[9] 兰英, 章新华, 熊鑫. 浅海水声多途信道建模与仿真[J]. 舰船科学技术, 2010, 112(1): 120-122.
LAN Ying, ZHANG Xinhua, XIONG Xin. Modeling and simulation of underwater multi-channel in shallow water[J]. Ship Science and Technology, 2010, 112(1): 120-122.
[10] KILFOYLE D B, BAGGEROER A B. The state of the art in underwater acoustic telemetry[J]. IEEE Journal of Oceanic Engineering, 2000, 25(6): 340-344.
[11] LIU C, ZAKHAROV Y, CHEN T. Doubly selective underwater acoustic channel model for a moving transmitter/Receiver[J]. IEEE Transactions on Vehicular Technology, 2012, 61(3): 938-950.
[12] VAN W P A. Propgation and scattering effects in underwater acoustic communication channels[J]. IEEE Journal of Oceanic Engineering, 2013, 38(4): 614-631.
[13] XU T, TANG Z, LEUS G, et al. Multi-rate block transmission over wideband multi-scale multi-lag channels[J]. IEEE Transactions on Signal Processing, 2013, 61(4): 964-979.
[14] YERRAMALLI S, MITRA U. Optimal resampling of OFDM signals for multiscale-multilag underwater acoustic channels[J]. IEEE Journal of Oceanic Engineering, 2011, 36(1): 126-138.
[15] SIDERIUS M, PORTER M B. Modeling broadband ocean acoustic transmissions with time-varying sea surfaces[J]. Journal of the Acoustic Society of America, 2008, 124(1): 137-150.
[16] PETERSON J C, PORTER M B, SIDERIUS M. VirTEX: Virtual timeseries experiment code[J]. Journal of the Acoustical Society of America, 2010, 126(4): 2174.
[17] 田坦, 刘国枝, 孙大军. 声呐技术[M]. 哈尔滨：哈尔滨工程大学出版社, 2006.
