针对计算高精度需要，纳入了适合非均匀网格、采用附加源项实现的QUICK格式。

QUICK method, which was adapted to non-uniformly grid and implemented by an additional source, was adopted for high-required precision.

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计算结果证明，当采用非均匀圆柱坐标系下FDTD法计算时，圆柱坐标系下网格波阻抗可以较准确地计算由于网格尺寸不同造成的数值反射误差。

The results showed that MWI in cylindrical coordinates can be used to accurately calculate the numerical reflection error caused by different mesh increments in non uniform FDTD.

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采用坐标变换方法，将物理平面中任意几何区域上的非均匀网格剖分映射到计算平面中规则区域上的均匀网格剖分。

In this paper, an one to one maping is used to transfer an arbitrary domain and a nonuniform grid on it in physical plane to a rectangular domain with a uniform grid in computational plane.

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