PSO

此函数用于研究Mallet算法及滤波器设计，此函数仅用于消噪。(This function is used to study the Mallet algorithm and filter design, this function is only used to eliminate noise.)

本实验语音库为免费的柏林情感语音库，其采样频率为16KHZ，16bit量化。该语音库共有500 句情感语音信号，分别由十名专业演员(5 男，5 女)在不同情感状态下（高兴、愤怒、平静、悲伤、害怕、厌烦、憎恨）朗读十句不同文本的德语组成。本实验选取其中的部分情感（高兴、愤怒、悲伤）加以识别。仿真实验环境为MATLAB7.0。 实验选取的情感特征为短时平均能量、短时平均幅度、基频和短时过零率。为了降低不同人在表达不同情感时的个人差异造成的影响，本文实验过程中将提取的情感特征进行归一化处理。归一化采取将同一个人的三种情感语音信号的情感特征放在一起归一化处理，并将归一化后的情感特征作为KNN分类器的训练样本和测试样本。 该实验使用了传统的KNN算法和改进算法两种识别方式，通过实验结果对比了各自的特点。 (This experiment YuYinKu for free Berlin YuYinKu emotion, the sampling frequency for 16 KHZ, 16 bit quantification. The YuYinKu 500 words of emotional speech signal, respectively by ten professional actors (5 male, five female) in different emotional state (happy, anger, sadness, fear, calm, bored, hate) read ten sentences in different text of the German. This experiment selection of part of the emotions (joy, anger, sadness) is recognized. The simulation experiment environment for MATLAB7.0. The selection of emotional characteristics for short-term average energy, short-term average amplitude, frequency, and the short zero rate. In order to reduce the different people in different emotional expression of the impact of individual differences, the experiment process will extract emotional characteristics is normalized. The normalized will take the same three kind of emotional speech signal emotional features normalized put together, and after the normalized the emotional characteristics)

human iris pattern recognition for biometrics

说明：  MATLAB在曲线拟合中的应用，主要有一元线性回归 ，多元线性回归，曲线回归等(Curve fitting in MATLAB application, there are multi-linear regression linear regression, curvilinear regression, etc.)

matlab做的有源电力滤波器的仿真模型，做的有点乱。(matlab to do the simulation model of active power filter, do a bit messy.)

遗传 算法 ，基于matlab实现，通过选择、交叉、变异，经过多次的迭代从而找到最优个体(Genetic algorithm, based on matlab implementation, through selection, crossover, mutation, after several iterations to find the best individual)

此代码为图像处理技术中的沃尔什-哈达玛变换，实现图像的压缩处理(This code is an image processing technology Walsh- Hadamard transform, image compression)

说明：  matlab 实用指南 实例M文件(Matlab Practical Guide document examples M!)

fractal julia sourse code

MATLAB科学计算与工程分析源代码源程序3(MATLAB scientific computing and engineering analysis of the source code source 3)