【作者】 姜涛；

【导师】 庞伟正；

【作者基本信息】 哈尔滨工程大学 ， 通信与信息系统， 2003， 硕士

【摘要】 本文主要讨论了高频信道的传播特性和高频信道模拟器的仿真与实现。在论文开始我们讨论了无线通信信道的传播特性和高频信道的传播特性，分析了高频信道的数学表述和统计特性，最后我们选择了Watterson高频通信模型作为本论文的仿真和模拟模型。这一模型主要考虑了高频通信信道的多径效应、多普勒频移、多普勒展宽及信道传输的瑞利衰落，根据这一模型特点，我们给出了仿真结构图和算法分析，并在计算机上进行了计算机仿真，获得了较理想的效果。在硬件设计上，我们选用了双CPU(Tms320C3x和Am186)系统作为我们的模拟硬件平台，充分利用了DSP的高速运算功能和AM186的协调控制功能，在此平台上实现了高频信道模拟器的设计。在论文最后，还讨论了在设计构成中遇到的一些问题以及一些算法研究。更多还原

【Abstract】 HF channel simulation and characterization of HF channel is described in this paper. We discuss the characteristic of wireless channel and HF’ s at the forepart of the paper and, analysis several typical model about HF channel, and consider the math representation and statistic characterization, after that we select Watterson HF channel model as the simulated model in this paper. Multipath Doppler shifT Doppler spread and Rayleigh fading in communication is principal considered in this channel model. According these points, Configuration and Arithmetic is presented, and Result which is simulated in computer is contented. Dual-Cpu system(Tms320C3x and Aml86) is selected as fareware environment of simulation, in which high-speed logic calculation of DSP(Tms320C3x) and controlling capacity of Aml86 is utilized well. Design of HF channel simulation is realized in the fareware system. At last , some question meeting in system design and some studying about Arithmetic is talked over in the paper.更多还原