HF Channel Simulation

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.