搜索资源列表
wavelwts_transform
- 用下面的程序产生并显示与小波db4相关联的四个滤波器组.小波函数db4的迭代生成过程.单尺度一维离散小波分解与重构-With the following procedures and display associated with the db4 wavelet filter banks of four. Db4 wavelet function to generate the iterative process. Single-scale one-dimensional discrete wa
cwt
- 给定小波母函数,要求做连续小波变换，变换结果以图像形式给出（尺度－位移），说明并在图像上标出信号有哪几个成分。-For a given mother wavelet function, required to do continuous wavelet transform, transform results are given in the form of images (scale- displacement), indicating that the signal in the image
wavelet
- 基于小波变换的多尺度图像边缘检测matlab源代码(在Matlab7.0下运行)-Based on wavelet transform multi-scale edge detection matlab source code (in the Matlab7.0 run)
Based-on-wavelet-transform-modulus
- 基于小波变换模极大的多尺度图像边缘检测matlab源代码-Based on wavelet transform modulus maxima of multi-scale edge detection matlab source code
new0
- 小波变换 多尺度，canny，sobel，roberts，边缘融合-Wavelet multi-scale, canny, sobel, roberts, edge blending
wavelet1
- 编程实现基于小波变换尺度相关性去噪算法，结合例子验证该算法的去噪性能。-Programming based on wavelet transform denoising algorithm scale correlation, combined with examples verify the performance of our method.
wavelet
- morlet小波分析源程序，可用于时间序列的多尺度周期分析。-the code for wavelet analysis, which can show the multi-scale periods of time series data.
yy1
- 利用小波分解分析信号的时频特性 包含但尺度小波分解和多尺度小波分解-When using wavelet decomposition analysis signal frequency characteristics include scale wavelet decomposition and multi-scale wavelet decomposition
Untitled2
- 小波变换及小波基对不同尺度的haar及db小波连续变换的系数值的三维图与傅里叶变换的比较-Comparison of three-dimensional map of the wavelet transform and wavelet bases on different scales haar continuous and db wavelet transform coefficient values and Fourier transform
Daubechies
- Daubechies小波基的构造 采用双尺度方程求解小波基函数-The Daubechies wavelet construct two-scale equation solving wavelet function
wavelet
- 尝试将小波分析应用与降水量时间序列多时间尺度，以了解其不同时间尺度的详细结构和变化趋势-Try the applications of wavelet analysis and the precipitation time series of multiple time scale, the detailed structure and the change trend of the different time scales
wave_lx
- 多尺度分析，小波分析，用于水文等数据的分析，周期性等-Multiscale analysis, wavelet analysis, for the analysis of hydrological data, periodicity
matlabxiaobobianhuan
- 小波变换，包括单尺度分解 多尺度分解 小波包分解及重构 小波分解重构精简-Wavelet transform, including single-scale decomposition multiscale decomposition wavelet packet decomposition and reconstruction of wavelet decomposition and reconstruction streamline
MATLAB--example
- 06一维连续小波变换 画出连续小波整数变换尺度和用sym2小波尺度谱，使用分形信号作为输入 07 分形信号 离散和连续小波变换 对比-One dimensional continuous wavelet transform and draw the continuous One dimensional continuous wavelet transform and draw the continuous integer wavelet transform scale spectrum w
小波分解+MSE熵+特征提取
- 通过小波四层分解，获取脑电信号的四个波形，之后运用多变量多尺度熵计算综合MMSE，为脑电信号识别做基础(After four layers of wavelet decomposition, four waveforms of EEG signals are acquired, and then the MMSE is calculated by using multivariable and multi-scale entropy, which is the basis of EEG reco
数学形态学与小波变换
- 小波分解可以使人们在任意尺度观察信号，只需所采用的小波函数的尺度合适。小波分解将信号分解为近似分量和细节分量，它们在应用中分别有不同的特点。比如，对含有噪声的信号，噪声分量的主要能量集中在小波分解的细节分量中，对细节分量做进一步处理，比如阈值处理，可以过滤噪声。(Wavelet decomposition allows people to observe signals at any scale, just the size of the wavelet function is appropri
CWT
- 对滚动轴承声发射信号进行处理，运用基于正交小波基连续小波变换，寻找最优尺度参数(you can know the functions that finds the best scale in the CWT coefficients or the way how you can do this.)
wavelet_analysis
- 通过二进小波的多尺度分析对lena图像进行边缘提取的操作。(wavelet analysis using in extract edge from a picture)
多尺度
- 多尺度，小波核svm，有采集的数据，可做预测，适合学习(Multiscale Wavelet kernel svm, with collected data, can be used to predict, suitable for learning)
心电信号检测与分类算法的研究
- （1）心电信号预处理 心电信号是一种低频且含有众多噪声干扰的信号。针对心电信号存在的 噪声干扰问题，本文采用了平稳小波变换结合双变量阈值的方法对其进行去 噪处理。通过对心电信号进行八层平稳小波变换，得到不同的小波系数，采 用双变量阈值函数表达式对其进行处理得到新的小波系数，最后进行逆平稳 小波变换实现小波重构，完成心电信号去噪。Matlab 仿真结果显示，本文算 法的准确率较高，信噪比达到 84.5934dB。 （2）心电信号波形识别 反映心电信号的特征部分往往是信号的突变点，因此需