1、

The time frequency difference between grain noise and defect signal provide a possibility for enhancement of signal-to-noise ratio ( SNR) in ultrasonic testing.

晶粒噪声和缺陷信号的时频特征的差异,为提高超声检测的信噪比提供了可能。

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2、

The superficial grain noise of coating layer on battery electrodes is bad.

极片涂敷层表面颗粒噪声较强。

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3、

they are also quite useful in the analysis of noise problems, e. g. that of film grain noise.

它们对分析噪声问题(例如底片颗粒噪声)也是很有用的。

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4、

In a white-light optical processing system, if the filter apertures vibrate randomly around the rainbow diffraction spectra at Fourier plane, the amplitude grain noise of the grating encoded film in the output plane can be suppressed considerably and the output SNR is improved.

本文提出在白光信息处理中,可通过使滤波孔在傅里叶面彩虹状衍射谱附近做随机振动的方法,达到抑制光栅编码片的振幅型颗粒噪声。

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5、

A simple Method for Reducing Noise in Slipe Pipe at Grain proceeding Mill

一种控制粮食工厂溜管噪声的简易措施

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6、

We also analysed and studied other mathematical model, such as the fractal function, the mathematical model of three-dimensional noise function, the turbulence function, the grain function, and particle systems.

深入探讨了过程纹理的数学模型,特别是Perlin噪声函数,同时分析和研究了分形函数、三维噪声函数、湍流函数、木纹函数,以及粒子系统等过程纹理函数的数学模型。

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7、

The grain sizes of all samples are smaller ( 14.2~ 29.6nm), which is propitious to lowering the noise of grain boundary.

样品的晶粒尺寸较小(14.2~29.6nm),有利于降低磁记录材料的晶界噪音。

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