从一个Spice模拟中获得的结果建立了一个近场模型（near-field model），以后可以将其输入到一个3维求解器中，这是一种保持对自己EMC问题控制能力的好方法。
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The property of the near field subwavelength imaging in a metal thin-film structure is investigated using finite difference time domain method based on Drude model.
采用基于等离子体物理模型的时域有限差分方法模拟了金属薄膜近场成像特性；采用薄膜传输矩阵方法计算了金属薄膜对倏逝波分量的放大作用。
The computing method using scaling model can be applied to both far field and near field.
缩比模型计算既适用于近场，也适用于远场。
The principle of direct sequence spread spectrum ranging is introduced and the echo model of near field ranging is discussed.
论述了直接序列扩频测距的原理，研究了近距离测距的回波模型。
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