在静态条件下用声波探测法对两种饱水岩石标本(砂岩、花岗岩)的滤波特性进行了实验研究。

Under static condition the acoustic wave detection is applied to study the filtering characteristics experimentally for two kinds of saturated rock specimens (sandstone and granite).

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通过运算、试验证明中值滤波在抑制成像引信扫描图像噪声、克服探测元失效方面起着良好的作用。

With the calculation and the experiments we proved that median filter has operated well in noise suppression of scanning images and overwhelming failure of detecting element.

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光探测及放大电路实现信号的光电转换并放大、滤波，得到清晰的电压信号。

Optic detecting and amplifying circuit makes the optoelectronic signals exchange, amplify, filter and get the voltage signals.

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