Research And Simulation Of Wireless Channel For Spacecraft Communication

Wireless channel is an important compositive part of mobile communication. It is of great significance for theory research and engineering applications to model the wireless channel of mobile communication system. The main contents in this paper are modeling and simulations of wireless channel and they are part of the cooperative project"Research and Simulation of Wireless Communication System of Spacecraft"with a spaceflight inistitute in Beijing. Based on the large-scale and small-scale attenuation characteristic of wireless channel, the wireless channel models are given and simulations are made. The simulations contain two parts: simulation of indoor wireless channel and simulation of sea wireless channel. For the indoor model, the asorbing boundary conditions and the simulation arithmetic of the indoor enviroment are given based on the Finite Difference Time Domain method. For the sea wireless channel, the influence of sea to the channel from the spacecraft to the boat on the sea is discussed by the method of Newton iterative. In the end, the simulative results are given and some statistic and analysis of them are simultaneously made.