Development of Chang’E-1 operational simulator
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摘要: 飞行控制模拟器,简称飞控模拟器,是飞控中心用来验证飞行程序和地面测控方案,训练操作人员的模拟仿真系统,为系统演练构造一个尽量逼真的任务环境.介绍了嫦娥一号飞控模拟器的功能、结构和使用模式.提出了带轨道根数跳时的新方法,使模拟器具备加速跳时至任意轨道段的能力,提高了任务演练的灵活性.建立了高精度轨道动力学模型,并首次在模拟器中直接嵌入了部分星载软件,大大提高了模拟器的保真度.同时专门设计了图形化的集中监控软件,方便了用户的操作和管理.该模拟器在嫦娥一号卫星任务准备中得到了充分的应用,为嫦娥一号卫星任务的圆满完成奠定了坚实的基础.根据该模拟器的开发经验,对未来模拟器的研制提出了几点建议.Abstract: Operational simulator is a satellite simulation system used to validate the flight program and ground control schemes, to train mission operators, constructing a realistic mission environment for system testing in the flight control center. The functional design, structure and using mode of Chang'E-1 operational simulator were introduced. In order to make the simulator jump to any orbit phase of the mission, and to improve the flexibility of system drilling, a new time jump method with orbit elements was presented. The simulator constructed a high-precision orbit dynamics model based on patched two-body with perturbation. In addition, part of onboard software was directly embedded into the simulator for the first time. Thus, the fidelity of the simulator was greatly improved. Centralized monitoring software was specifically designed for the simulator. The graphical man-machine interface facilitated the user's operation and management. The simulator was dependently used in the preparation of Chang'E-1 mission, and contributed for the success of it. Based on the development experience of the simulator, some advice is suggested for future simulator development.
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Key words:
- Chang’E-1 mission /
- satellite simulator /
- orbit dynamics /
- fidelity /
- simulation
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