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Λ,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.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.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(2009049
