第二部分,本文分析了小波周期模型的分解尺度数和各种不同入库径流序列对模型预测精度的影响程度。
Part two: This paper analyzed the degree of predicting precision affected by decomposing scale coefficient of wavelet cycle model and various kinds of reservoir inflow runoff series.
首先,利用奇异摄动理论对再入飞行器状态变量进行两个时间尺度的划分,将系统状态方程分解成两个低维子系统。
Firstly, the state variables of the reentry vehicle are decomposed into two sub-systems of different time scales using the singular perturbation theory.
信号的多分辨经验模分解方法可以解释为以信号极值特征尺度为度量的时空滤波过程。
The multiresolution empirical mode decomposition method of signal can be interpreted as spatial filtering based on the signal's extremum characteristic scale.
此方法在海洋遥感图像多尺度分解处理应用中取得了较为理想的结果。
It USES in the application of ocean remote sensing image multi-scale decomposition, and gets a good result.
笔者利用经验模式分解法,将图像按尺度从小到大进行分离。
This paper USES Empirical Mode Decomposition method to decompose image from small-scale to large-scale.
本文根据平移不变子空间二尺度分解理论,系统、简结地构造了各类样条多分辨分析。
Several types of spline multiresolution analyses are constructed systematically simply based on the general decomposition theory of two-scale shift-invariant subspaces.
针对其时变、非线性以及长相关性等特点,提出一种多尺度分解的VBR视频业务的特征提取方法。
As to the time variation, non-linearity and long range dependence in VBR video traffic trace, a novel method of feature based on multi-scale decomposition was proposed.
浮点数表示法,含部份换轴之高斯消去法,使用矩阵大小之计算尺度调整,带状及三角对角系统,LU分解。
Floating point representation, Gaussian elimination with partial pivoting, scaling of computations with matrix size, banded and tri-diagonal systems, LU decomposition.
该算法以小波变换中的滤波器理论为基础,通过将图像序列在时间域的尺度分解和相应统计量计算,获得在红外焦平面校正中起影响的偏置和增益系数。
With the scale decomposition of image sequences on the time field and the corresponding statistics' calculation, the offset and gain coefficients in IRFPA NUC were obtained.
文中研究了简单的图像融合方法、基于多尺度塔形分解的多分辨率图像融合方法和基于小波变换的图像融合方法。
The simple image fusion method, the multiresolution image fusion techniques based on multiscale pyramid decomposition (MPD), and the image fusion method based on wavelet transform are studied.
通过实例研究,证实采用多尺度经验模态分解可获得老采空区上方地表建筑物的动态变形细部信号。
Trough case study, detail signals of dynamic deformation of buildings above old mine goaf are obtained using multiscale empirical mode decomposition method.
结合多尺度图像分解技术和等高线理论提出了一种图像特征表达方法。
An approach of image feature representation that combines the multi-scale image decomposition technique and contour theory is proposed.
该变换引入了各向异性分解方式,由此得到的小波基在各个方向上尺度可以不同,并具有更好的方向性。
By introducing anisotropic decomposition into the transform, the associated wavelet bases may have different sizes in different dimensions, and better directivity.
研究发现,分解的信号可由多尺度方法得到较好的理解。
Then, Hurst analysis was used to analyze multi-fractal characteristics of different scale signals.
提出了多尺度能量分解模型,提高了表示精度;
Multi-Scales energy decomposition model is proposed to improve the compression precision.
介绍了小波多尺度分析的数学原理,以三峡13期流动重力资料为例进行了小波分解。
The mathematic principle of wavelet multi-scale analysis is introduced. The 13 terms of gravity data, which are observed in the Three Gorges region, are decomposed by wavelet method.
基于多尺度经验模态分解(EMD),提出了老采空区上方地表建筑物稳定性分析及预测新方法。
A new method is put forward for stability analysis and evaluation of buildings above goaf by multiscale decomposition using empirical mode decomposition (EMD) method.
笔者利用经验模式分解法,将图像按尺度从小到大进行分离。
So, it is necessary to decompose an image according to the different-scale.
本文研究尺度滤波器的基本分解问题。基于所得结果,对于任意给定的尺度滤波器,给出了双正交小波矩阵的构造方案。
In this paper, the factorization of scaling vector filters into prime factors is considered. A construction of bi-orthogonal wavelet matrix with pre-asigned scaling filter is given.
在声发射信号的处理中使用了时频分析工具—小波包,将信号在不同尺度上分解,以便确定信号在奇异点处的时频特征信息。
In processing the AE signal, the analysis tool of time and frequency-wavelet package is adopted, in order to confirm the characteristics of time and frequency in strange points of the signal.
构造的正交尺度函数和小波的两尺度方程中只包含4项,因而相应的分解和重构算法也只有4项。
There are only 4 terms in the corresponding refinement equations of the orthogonal scaling functions and the wavelets (and so do the decomposition and reconstruction algorithms).
针对所处理图像的特点,对分割提取的真菌图像应用了多尺度cb形态滤波滤除噪声,并利用结构元素的串行分解原则提高了运算速度。
According to the characteristic of bacteria image processed using our system, we have improved the fast methods of multi-scaled CB morphology filter to remove noise.
为了避免经验模式分解(EMD)过程中不同时间尺度函数间的模式混叠,采用基于高斯白噪声加入的经验模式分解方法,并将之应用于旋转机械故障诊断中。
The EMD added Gauss white noise is proposed to avoid mode mixing of different time-scale IMF, and is applied in fault diagnosis for rotating machine.
本发明公开了一种基于多尺度线调频基稀疏信号分解的齿轮故障诊断方法。
The invention discloses a gear fault diagnosis method based on multiscale linear frequency modulation-based sparse signal decomposition.
基于小波多尺度分解子带主成份的特征提取法,利用小波多尺度分解子带系数图像特征。
The features extract method of MCSF based on wavelet multi-scale transform is that the image feature of coefficient sub-frequency is decomposed with 3 layer of wavelet multi-scale transform.
湿Q矢量分解揭示了该次暴雨过程的中尺度特性。
The partition of wet Q-vector indicates mesoscale feature in the heavy storm rain.
首先,运用WBCT对图像进行多尺度多方向分解,提取出各子频带的统计特征量;
Firstly, the method decomposes the coke micrograph with WBCT for multi-scale and multi-direction, and extracts the statistical features from each sub-band.
基于多尺度分解的融合方法主要从尺度分解方法和融合规则两方面开展研究。
There are two research aspects about fusion methods based on multi-scale transform: the multi-scale transform tools and the fusion rules.
基于多尺度分解的融合方法主要从尺度分解方法和融合规则两方面开展研究。
There are two research aspects about fusion methods based on multi-scale transform: the multi-scale transform tools and the fusion rules.
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