国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

TT&C is a special system for tracking,telemetrying and controlling the launch and operation process of spacecraft,which has many kinds of equipment,wide geographical distribution and many state parameters.So it is difficult to evaluate the performance of its equipment objectively, comprehensively,quickly and accurately.In order to solve this problem,a combined model based on AHP,grey relation and TOPSIS is proposed to evaluate the performance of aerospace TT&C equipment,and a certain radar is taken as an example to quantify and evaluate and verify.The research shows that the comprehensive application of various methods which its process scientific and results reasonable,can not only avoid their own limitations,but also give full play to their own advantages,and can be used to solve the difficult quantitative evaluation problem of TT&C's performance and has strong practicability.