天基对地观测系统效能评估初探

Initial Efficiency Evaluation Approach for Space-based Earth Observation Satellites System

针对亟需解决的对地观测系统顶层设计与合理规划问题,建立了效能分析层次化指标体系,采用层次分析法(AHP)设计指标权重;给出了定量、定性评估指标属性值的获取及量纲为1的归一化方式;构建了基于模糊综合法(FCE)的系统效能计算模型,基于隶属度函数法、专家打分法分别计算定量指标、定性指标的单因素模糊评估向量;最终提出基于AHP-FCE方法的多层级系统效能综合评估整体流程,并通过数值算例验证了方法的有效性。

Aiming at the general design and proper plan of earth observation system, the hierarchy efficiency evaluation index system was derived, and the analytic hierarchy process （AHP ） approach was used to get the weight of index. The acquisition and nondimensionlization method for the qualitative and quantitative index was given. The efficiency evaluation model was derived based on fuzzy synthetical computation, and the membership function approach and the experts scoring method were used separately to compute fuzzy evaluation vector of the qualitative and quantitative index. Finally, a multi-level system efficiency evaluation flow path was put forward based on AHP-FCE （Fuzzy synthetic evaluation）, and the effectiveness of the given approach was verified by a mathematical example.