基于层次分析法与模糊理论的卫星效能评估

Effectiveness Evaluation for Satellite System Based on Analytic Hierarchy Process and Fuzzy Theory

卫星系统效能准确评估问题,是卫星方案设计及优化提高卫星系统运行效率的基础。由于卫星面对多任务观测,无法准确评估完成任务的效能。所以,评估指标体系及评估方法的合理应用便成为效能评估的关键技术。为此提出采用指标体系和评估方法描述的目的是能在仿真环境中以标准化的流程来检验卫星系统的效能,通过分析卫星系统效能评估的特点,首先建立卫星效能评估的指标体系,然后通过层次分析法对其进行权重计算,并通过计算机仿真获取各指标的数值,最后使用模糊评判模型对卫星系统综合效能进行计算,取得了较好的效果,验证了数据的真实性和方法的可行性,解决了系统中非线性、高耦合的难题。

Satellite effectiveness evaluation is the basis of satellite project design and improving Satellite system running efficiency, the critical technologies of effectiveness evaluation are evaluation index and methods, the aim of them is to verify the effectiveness of the satellite system. By analyzing the characteristics of satellite system effectiveness evaluation, the paper firstly set up satellite effectiveness evaluation index structure, then computed the weights of the index, at last, the paper evaluated the satellite system comprehensive effectiveness by using the Fuzzy evaluation model to achieve good results. It demonstrates the data authenticity and method feasibilityl The method can solve the non -linear and high coupling problem intuitively.