| The performance of wireless communication systems to a large extent is constrained by the radio channel characteristics. With the wireless communication devices becoming increasingly complex and communication environments becoming increasingly diverse, it will be more and more significant that the wireless channel models and simulates for R & D of modern communication systems.In this paper, firstly we briefly analyse the existing typical modeling ideas and the application of conditions, and point out the advantages and disadvantages of each model. On this basis, we analyses the various factors which affect the radio wave transmission, and set up a wireless channel model for irregular terrain. The model takes into account of "three mechanisms" and "three kinds of effect" of radio wave transmission, and it is a certainty model that bases on theoretical analysis.After landing on the moon, in the lunar surface communication devices change information mainly by wireless communication. Therefore it is necessary for the actual communication environments to research the conduct. In the second part of the paper, the communication environment of the model will be specific into the lunar surface communications environment. Specially, against the communication environment, a visualization platform about the wireless communication channel model had been set up on the condition of application of Delphi. Then the platform can be applied into the comparison and analysis among prediction model, free space propagation model and reflection model. At the same time, a carefully analysis on the important factors which affect the model can be carried out by simulation.Finally a hardware model plan based on FPGA had been proposed, and the key factor had been simulated by ISE. |
