方向系数(directional coefficient)D(θ,φ)对立体角的积分等于1,归一化方向分布(normalized directional distribution)Fn(θ,φ)的最大值等于1.
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It is difficult to calibrate an X-probe, since the directional coefficient is coupled into the calibration curve.
对于X型探头，热线的方向系数耦合在校准曲线里，这给热线校准带来一定的困难。
Introduced two synthesis approach which are commonly used in antenna design engineering, discussed the calculation of directional coefficient and the standing waves bandwidth.
介绍了地线工程设计中常用的两类综开方式；谈论了地线方背性解数的盘算和驻波带阔盘算。
To preserve image features and fine part, the regular coefficient is locally adjusted according to the directional derivatives of the image.
为了保持图像的特征和细节，文章利用图像的方向导数局部地调整正则系数。
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