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xiaobohezixiangguan
- 本文提出了一种利用二进制小波变换和短时自相关函数相结合的算法来检测语音信号的基音周期。它克服了单纯的短时自相关函数法对含噪语音检测时阈值难以确定的缺陷。-This paper proposes the use of a binary wavelet transform and short-time auto-correlation function of combining voice algorithm to detect letter Pitch No. cycle. It overcome
ping_yi_fa_
- 小波变换平移法,可以提高信号检测的能力,改善信噪比。-left_shift of wt
denoising
- 一维小波降噪,该程序运用多尺度小波变换法进行降噪,效果不错-One-dimensional wavelet noise reduction, the program is the use of multi-scale wavelet transform for noise reduction and good results
SSeparately_be
- 基于小波变换的分开—合并图像分割matlab.采用多尺度小波变换系数作为四分树结构的分开一合并法图像分割的一致性度量 从而在大的图像块中。。去除噪声的影响,在小的图像块中,以小波变换的局部极大值精确定位边缘,根据边缘信息进行分开一合并法图像分割 .实验表明.算法得到满意的结果 . -Separately based on wavelet transform- merge image segmentation Matlab. Multi-scale wavelet transform coef
EDGE
- 图像处理: 打开图片 可实现边缘检测 基于 模板算子法,高斯算子 canny算子,小波变换,金字塔,灰度形态学 实现边缘检测-Image processing: Open the image edge detection can be realized Edge detection based the template operator method, Gaussian operator canny operator, wavelet transform, pyramid, gr
3MATLABYUYIN
- 3.1语音信号的同态处理和倒谱分析30 3.1.1同态处理的基本原理30 3.1.2复倒谱和倒谱31 3.2离散余弦变换34 3.3Mel频率倒谱系数的分析37 3.3.1Mel滤波器组37 3.3.2MFCC特征参数提取38 3.4小波和小波包变换43 3.4.1小波变换43 3.4.2小波包变换44 3.4.3小波包算法45 3.4.4MATLAB中一维小波和小波包变换函数46 3.4.5MATLAB语音信号小波和小波包变换的例子49 3.
gingfei
- 用平面波展开法计算二维声子晶体带隙,关于非线性离散系统辨识,Gabor小波变换与PCA的人脸识别代码。- Computation Method D phononic bandgap plane wave, Nonlinear discrete system identification, Gabor wavelet transform and PCA face recognition code.
kuntai
- Gabor小波变换与PCA的人脸识别代码,基于K均值的PSO聚类算法,使用大量的有限元法求解偏微分方程。- Gabor wavelet transform and PCA face recognition code, K-means clustering algorithm based on the PSO, Using a large number of finite element method to solve partial differential equations.
yuyinzengqiang
- matlab 利用谱减法、小波变换法、双线性变换法分别对语音信号增强,比较语音增强后的效果-The effect of the use of spectral subtraction matlab wavelet transform, bilinear transform speech signal enhancement were compared after the speech enhancement
nieyun
- 信号处理中的旋转不变子空间法,Gabor小波变换与PCA的人脸识别代码,数据包传送源码程序。- Signal Processing ESPRIT method, Gabor wavelet transform and PCA face recognition code, Data packet transfer source program.
keifui_v74
- 用平面波展开法计算二维声子晶体带隙,重要参数的提取,基于小波变换的数字水印算法matlab代码。- Computation Method D phononic bandgap plane wave, Extract important parameters, Based on wavelet transform digital watermarking algorithm matlab code.
fanghen
- 采用热核构造权重,Gabor小波变换与PCA的人脸识别代码,数学方法是部分子空间法。- Thermonuclear using weighting factors Gabor wavelet transform and PCA face recognition code, Mathematics is part of the subspace.
punlai
- AHP层次分析法计算判断矩阵的最大特征值,用谱方法计算流体力学一些流动现象的整体稳定性,Gabor小波变换与PCA的人脸识别代码。- Calculate the maximum eigenvalue judgment matrix of AHP, Spectral methods of computational fluid dynamics flow of some of the overall stability of the phenomenon, Gabor wavelet transf
peifei
- Gabor小波变换与PCA的人脸识别代码,AHP层次分析法计算判断矩阵的最大特征值,matlab编写的元胞自动机。- Gabor wavelet transform and PCA face recognition code, Calculate the maximum eigenvalue judgment matrix of AHP, matlab prepared cellular automata.
kuibun_v48
- 插值与拟合,解方程,数据分析,预报误差法参数辨识-松弛的思想,Gabor小波变换与PCA的人脸识别代码。- Interpolation and fitting, solution of equations, data analysis, Prediction Error Method for Parameter Identification- the idea of relaxation, Gabor wavelet transform and PCA face recognition code
bunpui_v23
- 数值分析的EULER法,利用自然梯度算法,Gabor小波变换与PCA的人脸识别代码。- EULER numerical analysis method, Use of natural gradient algorithm, Gabor wavelet transform and PCA face recognition code.
jengsai
- 窗函数法设计一个数字带通FIR滤波器,基于小波变换的数字水印算法matlab代码,Relief计算分类权重。- A window function design FIR digital band-pass filter, Based on wavelet transform digital watermarking algorithm matlab code, Relief computing classification weight.
fanting
- 最小均方误差等算法的MSE的计算,用平面波展开法计算二维声子晶体带隙,Gabor小波变换与PCA的人脸识别代码。- Minimum mean square error MSE calculation algorithm, Computation Method D phononic bandgap plane wave, Gabor wavelet transform and PCA face recognition code.
提升法实现第二代小波变换
- 提升法实现第二代小波变换,非常好用的程序。(Lifting method to achieve second Dai Xiaobo transform, very easy to use program.)
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