Realization Of Real-time Channel Analog System

Satellite mobile communication system has become one of the galloping communication research fields and a useful means of modern communication. During the work of studying, planning and designing modern mobile communication systems which are based on satellites, the study of propagating characteristics of the satellite mobile channel is one of the most important factors.In this dissertation, we gave the theoretical analyses and the manufacture of hardware of the satellite mobile channel simulator. We first did the work of the theoretical analyses and software simulations, and then we applied the conclusions to the work of hardware simulation of Lutz model.The main content in this dissertation includes:·The concept about satellite orbits,constellations and the propagating characteristics of satellite mobile channels were introduced. The theoretical analyses and discussion of models which are often used in the study of the propagating characteristics of satellite mobile channels were given.·The idea and theory of IF Satellite mobile communication channel model were discussed.·How to carry out the project of hardware were discussed. We discussed system timer design, filter design and noise design ·The design and the manufacture of FPGA were given.