消除噪声

The detected leakage signal can be decomposed into a sum of finite intrinsic mode functions by EMD, some of IMFs embracing typical AE characteristic can be selected to be reconstructed. Thus, noise interference can be eliminated. The reconstructed signals are analyzed and their cross-correlation parameter is calculated.

该信号分析方法将管道泄漏产生的声发射信号通过EMD分解为多个平稳的固有模态函数之和，选择包含声发射特征的若干IMF分量进行重构，可以提取到管道泄漏声发射信号的本质特征，消除噪声信号的干扰。

This paper uses the reformative Kalman filter to deal with the original pressure data sampling from oil conveying pipeline in real time to eliminate the noise interference and to improve the noise-signal ratio. It also uses the signal after being filtered to give an alarm and exact position of the leakage of oil conveying pipeline.

本文应用改进的Kalman滤波器对采得的输油管道原始压力数据进行实时性滤波，以消除噪声干扰、提高信噪比；利用滤波后的信号进行输油管道泄漏的报警和定位。

For special requests of eliminatng noise in wrapped phase field, a vector filtering method of wrapped phase field pretreatment is proposed.

针对包裹相位场在消除噪声的特别要求，提出了对包裹相位场预处理的向量滤波方法。

In order to understand the changes things can be smoothed through eliminate noise interference.

为了了解事物的变化规律，可以通过平滑处理消除噪声的干扰。

The comparison of objective results and subjective evaluation of the filtered images indicate that the proposed filtering method can effectively remove noise and keep tensor field details unchanged.

客观结果比较和滤波图像的主观评估表明：该滤波方法可在保持张量场细节不变的同时有效地消除噪声，是磁共振扩散张量场的一种有价值的滤波工具。

This approach has been applied to the identification of the characteristic of a thin-film thermocouple.

目前，消除噪声对测量系统信号干扰的方法主要有：①采用平均滤波和中值滤波，但这种方法只适用于静态

Conventional filtering is incapable of removing noises and improving the signal-to-noise ratio of microseismic record.

而常规的滤波方法在消除噪声，提高信噪比方面难以胜任。

The process of digital holography is more flexible and suitable to analyze and measure the experiment result quantitively. Moreover, it helps to store and process images digitally, which makes the application of digital holography wider.

与传统的光学全息相比，数字全息可以消除噪声以及记录过程中底片非线性等因素的影响，整个过程简单，有利于进行定量分析和测量；并且便于图像的数字化储存和实时处理，有利于全息术更广泛的应用。

An effective approach for attenuating acoustic noise and mitigating speech distortion is proposed.

提出了一种有效的消除噪声且减小语音失真的语音增强方法。

Based on these criteria, the canny edge detector first smoothes the image to eliminate and noise.

基于这些准则，Canny边缘检测工具首先使图像平滑，以消除噪声（说明，这里的an。。。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。