Description: 频谱分析技术是研究周期性现象中最为常用的一种统计分析方法，其主要是通过对一复合的波系进行数据变换，将其分解成若干振幅和相位不同的简谐波，并找出其中振幅最大的波，即该复合波中的主要频率。频谱分析的方法较多，其中最常用的是快速傅立叶变换法(FFT)-spectrum analysis techniques to study the cyclical phenomenon most commonly used a statistical analysis method, its principal is a composite of the wave data transformation, its decomposition into a number of different amplitude and phase of the harmonic, and finding the biggest wave amplitude, which is the compound of the main wave frequency. Spectrum analysis method more, the most common of which is a fast Fourier transform (FFT) Platform: |
Size: 3072 |
Author:郭泽清 |
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Description: matlab实现小波分解，包括程序主要函数的介绍程序结果等-Matlab achieve wavelet decomposition, including procedures for the main function on the results of procedures Platform: |
Size: 395264 |
Author:math_lab |
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Description: 经验模式分解，用于局域波分解，使用于多分量信号分析-empirical mode decomposition, for the local wave decomposition, in the use of multi-component signal analysis Platform: |
Size: 8192 |
Author:郭建涛 |
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Description: 用特征值分解法获得长椭球波脉冲，并得到时域脉冲和功率谱。-using eigenvalue decomposition ellipsoid with long-wave pulse, and with time domain pulse and the power spectrum. Platform: |
Size: 2048 |
Author:王芳 |
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Description: 本代码的方法是借助旋转不变技术估计信号参数(Estimation of Signal Parameters via Rotational Invariance Techniques)，现已成为谐波恢复（即正弦波个数及频率估计）的一种主要特征分解法。-This code is to help the estimated ESPRIT signal parameters (Estimation of Signal Parameters via Rotational Invariance Techniques), has now become the harmonic retrieval (that is, the number and frequency sine wave estimated) of one of the main characteristics of decomposition. Platform: |
Size: 1024 |
Author:胡建红 |
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Description: 利用小波变换对语音信号进行压缩，小波函数db5,分解级数5-Using Wavelet Transform of the voice signal compression, wavelet function db5, decomposition series 5 Platform: |
Size: 1024 |
Author:吴强 |
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Description: 波形的合成与分解。
用matlab编的。可以合成三角波，方波，并分析它们的频谱。有详细的说明。-Synthesis and decomposition of waveforms. Made use of matlab. Can be synthesized triangular wave, square wave, and an analysis of their spectrum. Is described in detail. Platform: |
Size: 75776 |
Author:舒梦宇 |
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Description: 我的本科毕业设计程序，包括了基于脊波小波分解和整数小波分解的小目标识别。-My undergraduate graduate design program, including the ridge wave based on wavelet decomposition and integer wavelet decomposition of small object recognition. Platform: |
Size: 291840 |
Author:summer |
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Description: ｗａｖｅ：小波包分解，对信号进行小波包分解，将信号按频率成分分解出来，并且估计小波包能量-wave: wavelet packet decomposition, wavelet packet decomposition of the signal, the signal decomposition by frequency components out, and the estimated wavelet packet energy Platform: |
Size: 1024 |
Author:Aiping_Yin |
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Description: matlab小波分解，将一幅图片分解为3次小波后再合成-matlab wavelet decomposition, will be a picture and then broken down into 3 wavelet synthesis Platform: |
Size: 1024 |
Author:xiaohuai |
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Description: 这个是我在网上找的关于小波分解和重构的matlab程序-This is my search on the net on wavelet decomposition and reconstruction of matlab program Platform: |
Size: 11264 |
Author:王冬青 |
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Description: 本文介绍了基于MATLAB软件在《信号与系统》课程教学中的仿真实验,通过抽样信号的表征、周期方波信号的傅立叶级数分解与合成、余弦信号的相加与相乘、RLC带通滤波器的频率特性等仿真实验,说明了将MATLAB应用于教学实践中的重要作用和意义。-This article describes the MATLAB-based software in the " Signals and Systems" course teaching simulation, by sampling the signal characterization, cycle square wave signal of the Fourier series decomposition and synthesis, and the sum of cosine signal is multiplied, RLC bandpass filter the frequency characteristics simulation, MATLAB used to illustrate the important role of teaching practice and significance. Platform: |
Size: 210944 |
Author:fenghaixiang |
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Description: 方波信号削噪，用sym8小波进行三层分解并用heursure软阈值进行小波系数阈值化-Cut a square wave signal noise, three with sym8 wavelet decomposition and use heursure soft threshold wavelet coefficients thresholding Platform: |
Size: 1024 |
Author:leo |
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Description: WAVEFAST Perform multi-level 2-dimensional fast wavelet transform.
[C, L] = WAVE FAST (X , N, LP, HP) performs a 20 N-level FWT of
image (or matrix) X with respect to decomposition filters LP and
HP.
[C, L] = WAVEFAST(X, N, WNAME) performs the same operation but
fetches filters LP and HP for wavelet WNAME using WAVEFILTER.
Scale parameter N must be less than or equal to 10g2 of the
maximum image dimension. Filters LP and HP must be even. To
reduce border distortion, X is symmetrically extended. That is,
if X = [c1 c2 c3 ... cn] (in 1D), then its symmetric extension
would be [ ... c3 c2 c1 c1 c2 c3 .. , cn cn cn-1 cn-2 ... ]. Platform: |
Size: 3072 |
Author:Hoang Cuong
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Description: 本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.) Platform: |
Size: 115712 |
Author:bingwuhen1 |
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Search - wave decomposition matlab