An improved multi port reflectometer calibration method using five unit vectors with arbitrary phase is described.

本文对多端口反射计的任意相位单位矢量五点校准法作了改进。

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The commutation near ring defined, it is proved that the near ring of an arbitrary near ring with its unit dimension is isomorphous with its commutation near ring.

定义了变换近环，然后证明了任意一个有单位元的近环与它的变换近环同构；任意一个无零因子近环与它的变换近环同。

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By means of BFCT, a three-dimensional physical space with arbitrary configuration can be transformed into standard cube, forming the unit cubic grid.

利用三维边界拟合坐标变换技术，可将具有任意曲面边界的三维物理区域变成长方体计算区域，在该区域中形成单位立方体差分网格。

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