SIMULATION SYSTEM ARCHITECTURE FOR CHANG-E LUNAR MISSIONS

摘要

Chang-E is the Chinese first unmanned spacecraft to the Moon. For future projects, a kind of simulation system for the space exploration is studied out by CAST,----the CLMSS. The result is trying to investigate the tasks' feasibility, and to promote the lunar missions efficiency and reliability through adaptability.As software component, The CLMSS emphasizes on several subsystems working status of the lunar spacecraft during the mission profile from the soft land to the Moon surface; it also simulates some working status of potential lunar rovers. Meanwhile it integrates the simulation of the course from the Earth-liftoff to the Moon circle orbit.In CLMSS a wide variety of simulation tasks, with large a variation in conditions, can be performed. It is composed of an inventory of subsystem models and couple of support software. With dispatcher and time monitor, these models, deployed on distributed computers, can work synchronously to simulate mission, power, control, thermal control, dynamics, communication links, payload, and navigation subsystems status, as closely as possible, while the key techniques is the models arithmetic and the process control method.