The form of distortion of work piece was studied, and the software rectification method of three coordinates measurement data was put forward accordingly.

研究了工件的变形形式，并依此提出三坐标测量数据的软件矫正法。

youdao

It can be seen from model experiment that the Total Harmonic Distortion (THD) of the current in the three-phase rectification circuit can be reduced from 30% to about 10%.

通过模拟试验证明，三相整流电路交流侧电流中的谐波含量由原来约30%下降到约10%。

youdao

This paper proposes an algorithm of iris automated identification and a method for rectification of geometric distortion of iris image. The matching result is measured by the relative coefficient.

提出了虹膜自动身份识别的算法及虹膜图像几何畸变的校正方法，最后用相关系数来测度图像的匹配结果。

youdao