1) Soft Threshold Wavelet Analysis
软阈值小波分析
2) wavelet threshold analysis
小波阈值分析
3) wavelet soft-threshold
小波软阈值
1.
Application of wavelet soft-threshold de-noising and GRNN in monthly load forecasting
小波软阈值去噪和GRNN网络在月度负荷预测中的应用
2.
This paper presents a comprehensive forecast model integrating wavelet soft-threshold with general regression neural network(GRNN).
由于中长期电力系统负荷数据相对较少,影响因素广泛,常用的负荷预测方法很难达到满意的精度,所以提出一种结合小波软阈值和广义回归神经网络的综合预测模型,该模型充分考虑了长期负荷数据相对较少和影响因素广泛的特点,把负荷预测看作一个信号序列,应用小波去噪原理,将信号与噪声分离,然后利用广义回归神经网络进行预测。
3.
An analysis method is presented,which uses improved wavelet soft-threshold denoising technology to preprocess the data of low frequency oscillations,and then Prony algorithm to extract the oscillation character.
提出了一种利用改进的小波软阈值去噪技术,首先对电力系统低频振荡数据进行预处理,然后采用Prony算法提取低频振荡信号特征的分析方法。
4) wavelet soft-threshold filter
小波软阈值滤波
1.
Aiming at the problem, the authors used orthogonal wavelet transform and wavelet soft-threshold filter algorithm to extract harmonic signal from strong chaotic background (taking example for Lorenz signal).
针对强混沌背景中频带内信号难以提取这一问题, 提出了基于正交小波变换与小波软阈值滤波相结合的方法。
5) Wavelet soft thresholding
小波软阈值法
1.
A wavelet soft thresholding kernel partial least squares (WSTKPLS) method was developed to perform simultaneous quantitative analysis of the mixture of o-dihydroxybenzene, m-dihydroxybenzene, p-dihydroxybenzene and phenol with overlapping spectra.
结合小波软阈值法和核心偏最小二乘法改进回归质量。
2.
The white noise is removed in the functions by wavelet soft thresholding, The results showed that noise is removed as well as the feature of the function is kept by Wavelet Soft Thresholding, The method is better.
利用小波软阈值法对加入一维图像的白色噪音进行除噪。
3.
The statistical noise was removed in SPECT images by wavelet soft thresholding,The results showed that noise in images was removed as well as the feature of the SPECT image was kept by Wavelet Soft Thresholding.
利用小波软阈值法对加入统计噪音的SPECT图像除去噪音。
6) wavelet soft threshold denoising
小波软阈值去噪
1.
In this paper,in order to improve the contrast of a virus image,the arithmetic of MDL wavelet soft threshold denoising associated with blind deconvolution is used.
本文介绍了应用MDL小波软阈值去噪结合盲目反卷积来实现病毒原图像的恢复,以达到对比度提高的效果。
补充资料：地理阈值
亦称地理临界值。它将地理系统中的不同状态加以分隔与区分，把某一性质的表现范围加以限制和说明。在此种意义上，地理阈值代表了系统的“状态空间”的非连续性。在一般叙述中，常把地理阈值等同于地理系统边界条件，但二者是有区别的：如果两种不同的状态同时存在于相同的边界条件之中时，地理阈值的表现可能是“非传递性”的转移；而当两种不同状态分置于不同的边界条件之中时，地理阈值的表现可能是“过渡性”地转移。无论是非传递性转移的地理阈值，还是过渡性转移的地理阈值，都使地理系统中不可能具备唯一的、通用的或稳定的解。所谓“解”都是有条件的，都是在地理阈值约束下的解。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条