语音信号的特征提取

gabor小波图片纹理特征提取，MATLAB编码，效果不错！(gabor wavelet image texture feature extraction, MATLAB code, good results!)

蚁群算法是一种模仿蚁群行为的仿生优化算法，其实现机理包括两个基本阶段：适应阶段和协作阶段。在适应阶段，各可行解根据积累的信息不断调整自身结构，路径上经过的蚂蚁越多，信息量越大，则该路径越容易被选择：时间越长，信息量越小。在协作阶段，各可行解之间通过信息交流，以期望产生性能更好的解。(Ant colony algorithm is a mimic ant colony behavior of bionic optimization algorithm, its implementation mechanism includes two basic stages: adaptation and collaboration. In adaptive phase, the feasible solution according to the accumulated information constantly adjust their structure, path through the more the ants, the greater the amount of information, it is the easier path is chosen: the longer the time, the smaller the amount of information. The collaboration stage, through the exchange of information between the feasible solution, expecting to generate better solutions.)

这是一个脉搏信号处理的代码，采用的小波分析，还做脉搏信号识别，对于学习信号识别和分类的人很有帮助(This is a pulse signal processing code, small wave analysis, and pulse signal identification, which is helpful for learning signal identification and classification)

这个有中文注释，看得明白，一种噪声辅助数据分析方法,本程序的性能已经达到较高水平，用于建立主成分分析模型，三相光伏逆变并网的仿真，计算加权加速度。

说明：  基于自适应滤波算法的通信系统中微弱信号检测程序(Weak Signal Detection Program in Communication System Based on Adaptive Filtering Algorithms)

说明：  对时间序列进行滤波，去掉噪声，得到平滑后的数据(Filters a time series via Lanczos method (cosine filter).)

简单的方法，读取输出文件中的数据的 Excel 文件。 函数 [Pts] = ReadData() %一组数据输出。 %功能，允许用户

说明：  图像压缩去噪增强锐化程序，供大家参考。 包括：数字图像矩阵数据的显示及其傅立叶变换 二维离散余弦变换的图像压缩 采用灰度变换的方法增强图像的对比度 采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 图像的自适应魏纳滤波 运用5种不同的梯度增强法进行图像锐化 图像的高通滤波和掩模处理 利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-(Sharpen Image Compression Denoising enhanced procedures for your reference. Include: digital image data display matrix and its Fourier transform two-dimensional discrete cosine transform image compression method using gray-scale transformation of the contrast-enhanced images using two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering using MATLAB The function affected by noise interference filter2 images mean filter Adaptive Image Filtering Wehner use five kinds of different gradient method to enhance image sharpening images of high-pass filtering and mask treatment using Butterworth (Butterworth) low pass filter noise by smoothing the images deal with the use of Butterworth (Butterworth) high-pass filter for sharpening images treatment)

dv-hop定位算法，用最小二乘法实现节点的定位。(Dv-hop localization algorithm, using the least square method realize the positioning of the node. )

GLCM feature for image segmentation