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1·First take the gray correlation coefficient matrix between primitive data sample and ideal scheme as new decision-making matrix, and then use TOPSIS to evaluate and arrange all schemes.

该方法以原始数据样本与理想方案之间的灰色关联系数矩阵为新的决策矩阵，利用理想解法对方案进行排序。

2·Simultaneously, using the theory of the relevant -value and correlation coefficient to process the sample data, detecting the maximum value to realize measurement.

同时，使用了相关值-相关系数的理论对采样数据处理，通过检测极大值实现系统的测长。