The characteristics of the dispersive relation and the propagation of plasma low frequency noise are discussed in details.

具体地讨论了在热传导条件下色散关系的特殊性质和相应的等离子体低频噪声的传播形态。

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The dielectric property of dispersive media is written as rational polynomial function, the relation between D and E is derived in time domain. It is named shift operator FDTD (SO-FDTD) method.

将一类色散介质的介电常数写成有理分式函数形式，进而导出FDTD中电位移矢量D和电场强度E之间的关系，形成SO_FDTD方法。

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