This paper used numerical method to get optimal filter and smooth operator under the Demigny's criteria.

本文利用了数值方法求出了Demigny离散准则下阶梯形边缘检测的最优线性滤波器和对应着它的平滑算子.

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The optimal filter coefficients are derived using the principle of orthogonality of the innovation signal.

优选的过滤器系数是获得使用创新信号的正交性的原则.

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The result gave the optimal filter particle diameter, layer thickness and filtration velocity.

根据实验结果,确定了最佳的过滤介质粒径 、 过滤层厚度和过滤速度.

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