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The double-density DWT is an improvement upon the critically sampled DWT with important additional properties: (1) It employs one scaling function and two distinct wavelets, which are designed to be offset from one another by one half, (2) The double
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THIS FILE IS USE TO CALCULUS THE Z TRANSFORM OF TRANSFERT FUNCTION
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按照二维函数的特点和视觉机制,提出了用来捕捉纹理基元的纹理检测器函数,基于纹理检测器和扩展的小波变换,提出了基于能量分解的影像纹理多尺度分析方法,并按照神经动力学的侧抑制和端点抑制等理论,实现了对多尺度纹理特征的融合，这一多尺度分析方法直接将影像纹理能量在时间一尺度空间分解,包含了相位信息,避免了基于线性变换多尺度分解引起的能量与相位分离,为纹理分析提供了一个层次性的框架,有效提高了纹理的识别能力。-According to the characteristics of two-dimensio
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掌握双线性变换法及脉冲相应不变法设计IIR数字滤波器以及窗函数法设计FIR数字滤波器的原理，具体方法及计算机编程。 2.观察双线性变换法，脉冲响应不变法及窗函数法设计的滤波器的频域特性，了解各种方法的特点。 3.用MATLAB画出三种方法设计数字滤波器的幅频特性曲线，记录带宽和衰减量，检查是否满足要求-Master bilinear transform and impulse response invariance IIR digital filter design and window fun
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基于小波变换和 HHT 的分布式并网系统谐波检测方法。
该方法利用小波变换多分辨率分析思想对信号进行划分，并对划分后的信号进行经验模态分解，得到一系列的经验模态函数IMF，并从 IMF分量中提取出基波分量和高次谐波；再对IMF分量进行Hilbert 变换得到信号的频率、幅值信息。-Wavelet transform and HHT based distributed systems and network harmonic detection method.
The method use
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In this paper, the concepts of Daubechies wavelet
transform are discussed. The Daubechies wavelets are
a family of orthogonal wavelets defining a discrete
wavelet transform and characterized by a maximal
number of vanishing moments for some g
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The continuous wavelet transform can be used to produce spectrograms which show the frequency
content of sounds ~or other signals! as a function of time in a manner analogous to sheet music.
While this technique is commonly used in the engineerin
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Detection of bearing defects in three-phase induction motors using Park’s transform and radial basis function neural networks
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Loads an image
Applies an Affine Transform to the image. This Transform is obtained the relation between three points. We use the function warpAffine for that purpose.
Applies a Rotation to the image after being transformed. This rotation is with
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