A high precision processing method for the CCD video signal of the catenary wire wear measurement is presented in the paper and a criterion for measuring target border has been set up.

介绍一种对CCD固态传感器测量接触网导线磨耗视频模拟信号的高精度处理方法，建立了测量目标边界的判据。

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Traditional processing method is difficult to ensure the curved surface precision, has the unconquerable obstacles.

传统加工方法难以保证曲面精度，存在无法克服的障碍交替传译。

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Based on grey system, an equal spaced GM (1, 1) modeling and method to data processing in engineering field was put forward, the method of precision inspection was introduced.

分析数据处理的现状后，运用灰色系统理论，建立了数据处理的等间距化GM(1,1)模型，给出了精度检验方法。

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