通过模拟计算，给出低频位相噪声的均方根梯度与聚焦光斑尺寸的初步规律。

The primary relationship between the size of the focal sp ot and RMS of phase gradient was also given by simulation calculation.

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对多聚焦图像和多光谱彩色图像分别采用计算图像信息熵和均方根误差、计算图像平均梯度的方法对融合的性能进行评价。

There is explicit characteristic of correspondence reflecting the droplet transfer among the electric, spectral and image information based on time information fusion.

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