基于随机桥理论的海面微波信道建模方法  

A modeling method of sea surface microwave wireless channels based on stochastic bridge

作　　者：曹小东[1] 汪小君[1] 姜弢[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《中国舰船研究》2015年第2期60-64,共5页Chinese Journal of Ship Research

基　　金：国家级重大基础研究项目;国家部委基金资助项目;哈尔滨市科技创新人才专项基金资助项目(2013RFXXJ083);哈尔滨工程大学中央高校基本科研业务费专项基金资助项目(HEUCF131602)

摘　　要：针对典型海况下的海面无线电波传播及微波信道建模问题,基于陆地多径传播环境下的随机桥过程建模理论,提出一种二维海面微波无线随机信道建模方法。首先,基于P-M海浪谱理论建立典型海况下的海浪电磁仿真模型;然后,采用不同的海况模型进行计算,得到随机电波射线样本数据,分析样本数据并确定随机信道模型参量的数字特征,建立海面微波波段随机多径信道模型;最后,将仿真数据、实验室测试数据和外场测试数据进行对比。结果显示,所建立的随机信道模型有效,可为复杂电磁环境中船用电子设备接收波形的建模与仿真提供有效的理论手段和技术方案。According to the wireless wave propagation and microwave channel modeling in typical sea con- ditions, a microwave wireless channel model on two dimensional sea surface in a random environment is es- tablished in this paper based on the modeling theory of stochastic bridge for fixed communication environ- ment simulation. Firstly, based on the P-M spectrum of the sea surface wave, electromagnetic simulation models in sea conditions ranging from 0 to 6 grade have been established. Then, by analyzing the random ray sample data collected under different sea conditions, the digital characteristics of key parameters of sto- chastic bridge processes are determined, and the microwave band stochastic multi-path channel model on sea surface is constructed. Finally, the analysis of radio wave propagation characteristics is conducted us- ing the proposed channel model. The simulation and laboratory experimental data show that the characteris- tics of the proposed channel model are in agreement with tested results. In brief, this paper provides a valid theoretical method and technique proposal for the modeling and simulation of the received waveform of key electronic equipment on ship in complicated electromagnetic environment.

关 键 词：随机桥 信道建模 随机射线 海浪模型 电磁仿真 

分 类 号：U665.26[交通运输工程—船舶及航道工程] TN92[交通运输工程—船舶与海洋工程]