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Characteristic and Simulation of the Near Space Communication Channel

Near space vehicle, the hotspot in the military research currently, has significant strategic value. The paper analyzes the characteristic of the near space communication channel, amends C. Loo' s fading channel model based on Doppler frequency shift, and gives the expressions for the probability density function, the level crossing rate and the average fading duration of the received signal. The expressions for the fading channel of near space communication in light shadowing, heavy shadowing and overall shadowing are respectively calculated numerically by simulation. The paper has great significance on the development and research for near space vehicles.