该迭代算法适用于各种电网瞬态信号去噪。
This iterative algorithm is applicable for de-noising of various transient signal in electric power system.
目的寻找适合载人航天需要的心电信号去噪方法。
Objective To find a method for denoising of ECG signals during spaceflight.
对此，本文研究了一种非平稳环境下基于小波变换的信号去噪算法。
This algorithm can overcome the deficiency of the conventional algorithms of noise reduction, which were only efficient for stationary environments and have large level of signal residual noise.
相对于经典的阈值函数，改进的阈值函数在超声信号去噪中更具有优势。
Compared with the traditional threshold functions, the improved one was more advantageous in ultrasonic signal denoising.
传统信号去噪方法常采用门限法对噪声信号的小波或小波包变换做阈值处理以达到去噪的目的。
In traditional denoising methods for signals, we usually use the method of threshold to achieve denoising by the threshold disposing of wavelet packet transform.
为了提高脉冲星辐射信号的信噪比，提出了一种基于经验模态分解(EMD)的脉冲星信号去噪算法。
In order to improve the signal-to-noise of the pulsar signal, an algorithm of pulsar signal de-noising based on Empirical Mode Decomposition (EMD) is proposed.
简要阐述了小波分析、小波包分析的基本原理，并在此基础上介绍了利用小波包给信号去噪的一般原理。
This paper briefly expounded the basic theory of wavelets and wavelet packet, and on the basis of using wavelet packet, introduced the general principles in vibration signal denoise.
监测信号异常复杂，往往包含有很多尖峰或突变状的非平稳成份，传统的傅里叶变换无法对这种信号去噪。
Monitoring the signal is very complex, often contain many mutations shaped peak or non-stationary components, the traditional Fourier transform of this signal de-noising can not.
利用小波变换提取了密闭爆发器压力信号的时频特征，讨论了小波在压力信号趋势检测和信号去噪方面的应用。
The time frequency information of pressure in closed bomb is gained by using wavelet. Application of wavelet in the trend detection and signal denoising is discussed.
实例分析表明：该模型能基本反映超声检测信号的特点，而且此算法对钛合金超声检测信号去噪效果比较理想。
Examples prove that the model can reflect the character of the ultrasonic signal and noise correctly, and the result of the denoising using this algorithm is satisfactory.
为提升NQR信号信噪比，根据NQR信号的特点，提出了一种基于改进阈值函数小波变换的NQR信号去噪方法。
In this work, a signal process method for NQR signals is presented, which is based on wavelet transform and specially designed for the detection of pentaerythritol tetranitrate with NQR.
实例分析表明，该模型能基本反映超声检测信号的特点，而且此算法对TA2钛合金超声检测信号去噪效果比较理想。
Examples prove that the model can reflect the character of the ultrasonic signal and noise signal correctly, and the result of the denoising using this algorithm for TA2 titanium is satisfaction.
针对超声无损检测中超声信号受噪声污染、信噪比不高的情况，提出了一种新的基于改进阈值函数的小波域超声信号去噪方法。
Aimed at the ultrasonic signal polluted by noises, which is low in SNR, a method of the ultrasonic signal denoising in wavelet domain based on an improved threshold function was put forward.
研究了基于小波变换的语音去噪问题，在对传统阈值法去噪和语音特性分析基础上，提出一种改进的多阈值法语音信号去噪方法。
By Analysing speech signal and conventional denoising method of threshold, a new mult-threshold based on wavelet transform method of speech signal denoising is proposed.
研究了基于小波变换的语音去噪问题，在对传统阈值法去噪和语音特性分析基础上，提出一种改进的多阈值法语音信号去噪方法。
This paper introduces the application of wavelet transformation in speech signal denoising, describes in detail the method of soft threshold and hard threshold and points out their disadvantages.
基于小波变换对信号去噪进行了深入地分析和研究，结合去噪原理讨论和比较了实际应用中对小波基及阈值规则的合理选取问题。
Combining with the denoising principle, the rational selection issue concerning more suitable wavelet base and the best threshold rule in actual application is discussed and compared.
在论述了小波分析、信号奇异性与小波变换模极大值性质关系的基础上，本文给出了一种基于小波变换模极大值的信号去噪算法。
Based on the wavelet transform and the relation between signal singularity and wavelet transform modular maximum, a noise removal technique is discussed.
为了更好地进行地震测井联合反演，必须首先对测井信号进行预处理，而在此过程中测井信号去噪和测井低频信息提取是非常重要的。
The well-logging signal pretreatment is the first requirement for the sake of a better joint inversion of seismic and well-logging data.
在计算信号的协方差矩阵时，对图像分块并用椭圆窗滑动求局部协方差矩阵，以达到局部自适应的去噪目的。
When the signal covariance is calculated, the image is cut into several blocks and the elliptic window is used, so the local covariance is achieved.
这样做的结果，使高频段有效信号的估计更加准确，能更好地改善去噪效果，从而达到拓宽有效频带的目的。
As a result, we accurately estimate the effective signals in high frequency band and better the noise suppression, thus broadening the effective frequency band.
提出了对传感器采集到的微弱信号进行累加平均和小波变换中的多分辨率分析方法相结合去噪。
The method that combine the cumulative average and multi-resolution analysis in wavelet transform was presented which can de-noise the weak signal collected from the sensor.
传统的振动信号处理方法抗扰去噪效果并不理想。
The effect of interference removal by the traditional vibration signal processing methods is not adequate.
本文详细说明了应用GH M正交多小波对地震信号进行去噪处理的原理，并给出实际例子说明该方法的有效性。
The paper elaborated on the principle of noise suppression processing by using GHM orthogonal multi wavelets for seismic signal and gave real examples to show the effectiveness of the method.
利用这种信号的分解与重构算法在南芬露天矿爆破地震信号噪声处理中，取得较好去噪效果。
This signal decomposition and rebuilding algorithm was used in processing the blast - caused seismic signal noise of Nanfen Iron Open - pit Mine, which achieved good noise subtracting effect.
通过实验，得出sym 12结合软阈值处理法具有最优的信号重构及去噪效果。
According to experiments, it can be concluded that the treatment combining SYM12 with the soft threshold has the optimized signal reconstruction and de-noising results.
为了验证该方法可以在去噪的同时有效的保留原信号的特征分量，进行了模拟故障试验。
Simulation tests are made to verify that the partial features of the original signal can be reserved after de noising via this method.
可使线性静态或动态传输通道中混叠的多源信号实现分离，从而可应用于传输信号上的去噪。
The noise mixed on process signal by a linear and convolutive fashion in a stationary or nonstationary propagation passage can be canceled with this approach.
目前的小波去噪绝大多数都是基于阈值决策的方法，而阈值选择往往都是建立在对信号小波变换系数的方差估计上。
The present method for noise reduction with wavelet transform is based on the thresholding method and threshold selection will depend on the estimation of the noise standard deviation.
目前的小波去噪绝大多数都是基于阈值决策的方法，而阈值选择往往都是建立在对信号小波变换系数的方差估计上。
The present method for noise reduction with wavelet transform is based on the thresholding method and threshold selection will depend on the estimation of the noise standard deviation.
应用推荐