Numericalanalysis

脑电信号的复杂度计算，有文档和多个matlab程序实例(EEG complexity calculation, there are documents and multiple instances of matlab program)

经典的Kay写得数字信号处理的matlab代码，很有意义，分享(Designed for practicing electrical engineers, researchers, and advanced students, this text is a thorough, up-to-date introduction to optimizing detection algorithms for implementation on digital computers. For a full book description and ordering details please refer to http://www.mathworks.com/support/books/book1505.jsp )

采用matlab设计数字滤波器的源程序，包含滑动滤波器、切比雪夫低通、带通滤波器等！ (Digital filter design using matlab source, including sliding filters, Chebyshev low pass, band pass filter!)

在数值微积分中讨论并比较了没有初等函数解析式情况下的 定积分数值逼近的(Discussed in the numerical integration and compared the analytic situation is not under the primary function of integral numerical approximation of the rectangular method, trapezoidal method, Simpson' s method and Coates law)

am need of matlab files regarding fingerprint recognition. please provide me the same on accepting my programs

不错的pso源程序，非常适合初学者学习。(Pso good source, very suitable for beginners to learn.)

内涵PCA降维;SMOTE插值;t-SNE降维等算法的随机森林算法，以及鸢尾花数据集，有利于新手或者工程性实验借鉴~(Connotative PCA dimensionality reduction; SMOTE interpolation; t-SNE dimensionality reduction algorithms such as random forest algorithm, as well as iris data sets, is conducive to novice or engineering experiment reference ~)

说明：  生物特征识别技术作为一种身份鉴别手段具有独特的优势。在生物特征识别系统中, 采集数据的预处 理是不可或缺的环节。以人脸识别为例, 介绍了一种在复杂背景的彩色图像中, 基于颜色和知识的生物特征预处理 方法。首先利用颜色信息从图像中分割出类肤色区域, 然后运用人脸几何特征和眼睛的提取定位人脸。仿真实验表 明, 该算法能较为准确地定位彩色图像中的正面或小角度偏转的人脸, 具有较快的运算速度。(Biometrics as an identification tool has a unique advantage. In biometric systems, collect data preprocessing is an indispensable link. To face recognition, for example, presents a complex background in color images based on color and knowledge of the biological characteristics of pretreatment. The first to use color information to separate out the classes from the image color region, and then use face extraction of geometrical features and eye positioning face. Simulation results show that the algorithm can be more accurately locate color images in a positive or small-angle deflection of the face, with a faster computational speed.)

基于SIMULINK的PID控制器设计与仿真 在第二个和第三个环节之间有累加的扰动输入即：在 5 秒时，幅值为 0.5 的阶跃扰动；控制器为Gc(s) ，反馈环节 H (s )= 1。设定值为0 秒幅值 1 的阶跃信号。(SIMULINK-based PID controller design and simulation)

文件的读取 添加信息，删除信息，文件的储存(Read the file to add information, delete information, document storage)