1) white noise
白噪
1.
Fractal research on reflection coefficient series was done on the basis of fractaltheory- The research leads to the conclusion =the power spectrum of reflection coeffi-cient series is not white noise land it is directly proportional to the power of frequen-cy in most cases,that is to say,the reflection coefficient series has fractal property.
本文从分形理论出发,对地震反射系数序列进行了分形研究,得出反射系数的功率谱并不是白噪的,在多数情况下与频率的幂指数成正比关系,即具有分形特征。
2.
The white noise interference in GIS PD is analyzed.
分析了GIS局部放电中白噪声干扰。
3.
As we assumed the power spectrum of the reflection coefficient is white noise in traditional method to calculation autocorrelation wavelet, so there is some limitation in practice.
常规自相关子波求取方法假设反射系数功率谱为白噪谱,因而在实际应用中受到限制。
2) daytime noise
白昼噪声
3) noise whitening
白噪化
1.
This paper discusses in detail how to obtain the inverse wavelet by using least squares, why the effect of conventional inverse filtering is not so positive, and also analyses the inverse filtering effect after noise whitening from error energy, frequency characteristics, the information difference between whitened and nonwhitened noises, and other aspects.
主要根据误差能量和频谱特征,分析地震资料处理中最小平方反滤波白噪化后反滤波因子、滤波结果和地震子波的变化。
4) Weak white noise
弱白噪声
5) white noise
白噪干扰
1.
An effective technique of combining information for reducing the white noise of partial discharge signals;
一种抑制PD白噪干扰的有效复合信息技术
2.
In order to accurately detect partial discharge of power equipment,white noise must be suppressed.
根据PD信号和白噪干扰的复小波系数各有其特点和小波变换的本质是被分析信号和小波做内积运算,提出了从一簇复小波中逐层选择最优复小波并根据模极大值原理确定分解层数的方法即以阈值消噪法为基础的复小波簇消噪法。
6) white noise
白噪声
1.
Virtual white noise generator based on Logist eqution and Labview;
基于Logist方程和Labview的虚拟白噪声发生器的设计
2.
The Calculation of Correlation Function of the Linear System Output When the Random Input is White Noise;
随机输入为白噪声时线性系统输出的相关函数的计算
3.
Design of Logist equation virtual chaotic white noise generator based on LabWindows/CVI technology;
基于LabWindows/CVI技术的Logist方程虚拟混沌白噪声发生器设计
补充资料:白噪声
白噪声
white noise
白噪声[咖te俪se;6e几u曲川yM] 有常值谱密度(sPeet阁de招ity)的广义平稳随机过程(stationa理stochasticP联ess)X(t).白噪声的广义相关函数形如刀(r)二。’占(t),其中叮’是正常数而占(t)是吞函数.白噪声过程被广泛应用于描述有很小相关周期的随机扰动(例如“热噪声”—导体中由电子的热运动产生的电流强度的脉动).在白噪声的谱分解 x(。)一丁。!、!d:(、)中,其“基本振动”e“‘d:(又)在所有频率又处都有同样的平均强度;更确切些说,它们的平均平方振幅是 Eld:(洲2一兰以一二<伙二. 2兀这个谱分解意味着,对每一平方可积函数甲(t),
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参考词条