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时变多径水声信道的仿真研究
引用本文:牛富强,杨燕明,郭长勇,刘贞文.时变多径水声信道的仿真研究[J].台湾海峡,2009,28(4):586-591.
作者姓名:牛富强  杨燕明  郭长勇  刘贞文
作者单位:1. 国家海洋局第三海洋研究所,福建,厦门,361005
2. 厦门大学海洋学系,福建,厦门,361005
3. 国家海洋局第三海洋研究所,福建,厦门,361005;厦门大学海洋学系,福建,厦门,361005
基金项目:国家海洋局第三海洋研究所基本科研业务费专项基金资助项目 
摘    要:本文针对浅海水声信道的时变特性,基于射线理论引入海洋参数——强度起伏参数Φ、不均匀度参数A,建立有效的时变多径信道模型,并采用Matlab工具进行仿真.仿真结果表明,该模型相比于确定性模型更容易理解、更真实.文中给出的模型和结论能够为实际通信系统中发射接收机深度等的选择和设计提供一定的参考和依据,有助于对水声信道的了解.

关 键 词:海洋声学  水声信道  时变信道  多径传播  仿真

Simulation study on the time-varying multipath model for underwater acoustic channel
NIU Fu-qiang,YANG Yan-ming,GUO Chang-yong,LIU Zhen-wen.Simulation study on the time-varying multipath model for underwater acoustic channel[J].Journal of Oceanography In Taiwan Strait,2009,28(4):586-591.
Authors:NIU Fu-qiang  YANG Yan-ming  GUO Chang-yong  LIU Zhen-wen
Institution:NIU Fu-qiang, YANG Yan-ming, GUO Chang-yong, LIU Zhen-wen( 1. Third Institute of Oceanography, SOA, Xiamen 361005, China ;2. Department of Oceanography, Xiamen University,Xiamen 361005 ,China)
Abstract:According to time-varying characters of underwater acoustic (UWA) channel,an effective model of time-varying multipath channel based on ray theory is developed.In the model,two important ocean parameters,the strength parameter Φ and the size parameter Λ,are introduced.Through computer simulation,the model provides more intelligible and realistic results than the deterministic model.The simulation results offer a certain reference and basis for analysis and design of the receiver depth,which is helpful for understanding the character of the UWA channel.
Keywords:marine acoustics  underwater acoustic channel  time-varying channel  multi-path propagation  simulation
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