近年来几个航次海上波浪测量的实际应用表明，高通数字滤波的效果是令人满意的。
The sea wave measure of several voyages in recent years shows that the effect of high-pass digital filtration is satisfactory.
采用这种技术，可以实现数字图像卷积运算，因此可以完成图像的低通滤波、高通滤波、强化边缘等处理。
With this technique, the digital image convolution can be realized, therefore, the image low-pass filtering, image high-pass filtering, edge-enhancing could be realized.
本文主要提出两种消除数字地震信号中长周期随机干扰的方法：窄带低通滤波对消法和自适应高通滤波法。
Two methods with which the long disturbance is removed from the digital are introduced: narrow band low - pass filtering canceling method and adaptive high - pass filtering method.
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