... Phase-angle of voltage transformer 电压互感器的相角差 Phase-shifting algorithm 移相算法 Pilot protection 高频保护；纵联保护 ...
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文中用逼近法和双线性变换法，设计了用于圆度测量的高斯数字逼近滤波器，并给出了零相移的递归滤波算法，计算量小，计算效率高，易于实现。
A series of Gaussian digital approximation filters used in roundness measurement were designed on the basis of approximation method and bilinear transformation.
在研究相位偏移干涉测量技术基础上，重点研究了五幅算法计算精度及移相误差对计算结果的影响；
The deviation introduced by reference phase shifting errors on four-steps and five-steps algorithm are analyzed.
研究了虚拟极化理论中的幅相加权算法，修正了移相矩阵，给出了虚拟极化的工程化实施方案。
The amplitude-phase weight algorithm is studied in the virtual polarization, and its phase shift matrix is modified. An appropriate design project of virtual polarization is offered as well.
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