捷联式惯性导航系统性能的综合评价新方法

Comprehensive Performance Evaluation of the Navigation System Based on Triangular Fuzzy Numbers

该文根据捷联式惯性导航系统的组成元件及功能 ,给出评价其性能的多层次指标体系 ,具体评价步骤如下 :首先由专家采用百分制给出的三角模糊数的初始评价矩阵 ,选用隶属函数得到三角模糊数隶属关系阵。其次利用AHP[1 ] 确定各层次的指标权重 ,由此建立了三角模糊数与AHP相结合的多层次模糊评价模型。最后应用Yager方法计算三角模糊数的平均值对各系统的评价结果进行排序。此方法弥补了单纯的AHP法解决多层次问题以及对评价结果排序的不足。为评价实际工程中多系统。

Based on the components and functions of the SINS, the index structure is gived.The evaluation step is as follows:firstly according to the scores gived by the experts, the initial evaluation matrix of triangular fuzzy numbers is gained. Then the membership matrix is gived by selecting membership functions.Secondly the index weights are computed by using AHP method. The fuzzy evaluation model is established by using AHP and the triangular fuzzy numbers .At last the evaluated results are arranged by computing the averaged value of the triangular fuzzy number using the Yager method.The method gived in the paper makes up a defect of the AHP method in solving many levels questions.It gived a new method for evaluating the questions about many factors and many systems