基于STK的卫星系统设计优化研究

随着小卫星技术的发展，卫星系统的结构和功能也越来越复杂。为了降低卫星系统的造价，提高卫星系统的性能，需要对卫星系统进行设计优化。该文针对目前通用设计软件的不足，提出在STK和ModelCenter的基础上。开发卫星系统设计优化平台，详细阐述了基于STK仿真环境的卫星系统设计优化过程。为实现卫星系统的设计优化，应在任务分析的基础上定义STK场景，确定卫星系统的性能评价指标和设计变量，对设计变量进行敏感性分析，选择关键的设计变最，确定优化目标函数和约束条件并进行优化求解。最后给出了一个卫星系统设计优化的应用实例。

Satellite System Design Optimization Based on STK

With the advent of small satellite technology, the structure and function of satellite system are becoming more and more complicated. Design optimization is necessary to satellite system for the sake of reducing its cost and improving its performance. By considering the disadvantages of general design softwares, this paper puts forward a design optimization platform of Satellite system integrated with STK and ModelCenter, illustrates the STK - based design optimization process in detail. To achieve the design optimization of a satellite system, we may define a STK scenario on the basis of the mission analysis, define the performance evaluation specifications and the design variables, conduct sensitivity analysis of the design variables, choose the key design variables, confirm the optimization objective function and constraints, and solve the optimization problem. A design optimization application is presented in the end.