A new technique using the least square method is given to separate the installation eccentricity and the first order error motion.

提出了用最小二乘法分离安装偏心和一阶回转误差的新方法。

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Based on the least square method, the technique of numerical fitting is merged into interval-valued fuzzy inference, and a new bidirectional fuzzy inference algorithm is put forward.

将数值拟合技术引入到区间值模糊推理中，提出一种基于数值拟合的区间值模糊双向推理算法。

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Digital filtering technique based on least square method, multichannel sampling technique and frequency variation sampling technique were used experimentally.

实验应用了基于最小二乘法的数字滤波技术、多通道采样技术、变频率采样技术。

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