In this paper, wavelet is used to erase speckle noise in radar PPI, and the principle of morphology is used for building structure element to filter off the speckle noise and clutter.

提出了利用小波来去除雷达平面位置图像(PPI)的散点噪声，然后利用形态学原理构造目标结构元来滤除斑点噪声和杂波。

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The qualitative and quantitative analysis shows that this technique can filter off the additive and multiplicative noise of the fringe patterns effectively, and avoid blurring high-density fringe.

定性和定量分析的结果表明该技术能够有效滤除条纹图中的加性噪声和乘性噪声，并且不会导致高密度区域的条纹模糊。

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You can choose to filter results more stringently or switch it off completely.

你可以选择性的让过滤系统更加严格或者把它完全地关闭。

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"I wouldn't turn off your spam filter, " says Paul Henry, a spokesman for the information technology security firm Secure Computing (nasdaq: SCUR - news - people ).

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While Instagram 2.0 is not a new app, it features a completely different system: new buttons added to the interface of the app allow users to see the filter in effect before snapping, shaving seconds off even the iPhone 4 experience.

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UTC's solution: Pass the return air through an aluminum filter sprayed with titanium dioxide that, hit with ultraviolet rays, sets off a chemical reaction that breaks down nasty organic compounds like benzene and formaldehyde into carbon dioxide and water.

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