一种浅海水声信道的仿真方法  

Simulation Method for Shallow Seawater Acoustic Channel

作　　者：施建宇 SHI Jian-yu(Shandong Institute of Aerospace Electronics Technology, Yantai Shandong 264000, China)

机构地区：[1]山东航天电子技术研究所

出　　处：《通信技术》2019年第10期2365-2369,共5页Communications Technology

摘　　要：介绍了一种结合本征声线模型与莱斯衰落信道的浅海水声信道仿真方法。该方法使用Bellhop模型求解信道的声线分布结构和时不变冲激响应特性,在此基础上对每条声线利用莱斯衰落建立信号的时变特性得到完整的时变信道的仿真。最后在MATLAB上对给定条件的水声信道进行仿真,得到了具有时延拓展和时变特性的接收信号。A shallow seawater acoustic channel simulation method combining intrinsic acoustic ray model and Rice fading channel is introduced. In the method, the Bellhop model is used to solve the distribution structure and time-invariant impulse response characteristics of the channel, and on this basis, the time-varying characteristics of the signal is established for each sound line by using Rice fading to obtain a complete time-varying channel simulation. Finally, the underwater acoustic channel of given conditions is simulated on MATLAB, and the received signal with time-delay extension and time-varying characteristics is obtained.

关 键 词：水声信道 本征声线 时变信道 莱斯衰落 

分 类 号：TN911.22[电子电信—通信与信息系统]