试验设计在对地观测卫星系统顶层设计中的应用研究

针对对地观测卫星系统顶层设计中存在的仿真耗时、设计空间大以及非线性约束的特点，在其优化的不同阶段构建了试验设计的应用框架：优化初期采用正交设计方法确定系统的关键性能参数，中期采用均匀设计或拉丁方设计生成仿真方案并依此进行数值仿真，后期通过稳健设计考虑系统的噪声因素，保证最终方案的鲁棒性。该框架可以缩小对地观测卫星系统的仿真规模、缩短仿真时间、提高优化效率，保证解的质量，最后通过一个实例对优化框架的效果进行了验证。

Application of Experimental Design in Top Level Design of Earth Observation Satellite System

The problem of earth observation satellite system (EOSS) optimization is characterized by computationally expensive, large scale design space, nonlinear constraints. According to different phases of simulation based optimization, a framework of experimental design is built. In the initial phase, orthogonal design is borrowed to rank related system variables. Then, uniform design or Latin Hyper cube design is adopted to create simulation plan. Finally, robust design is used to ensure the solution be of good robustness. By using the proposed framework, the scale of simulation can be greatly cut down, simulation time be badly shortened and simulation efficiency be largely improved. The most important should be that the quality of solution can be guaranteed，and finally can be proved by the example constructed in the final part.