chengxu

function g=distance_classify(A,b) 距离判别法程序。 输入已分类样本A（元胞数组），输入待分类样本b 输出待分类样本b的类别g 注：一般还应计算回代误差yita 输入已知分类样本的总类别数n 每类作为元胞数组的一列(function g = distance_classify (A, b) from the Criterion procedures. Input samples have been classified A (cell array), the importation of samples for classification b output samples for classification g categories b Note: the calculation should also be back on behalf of the general error input yita of the total known types of classification of the number of samples n each Cellular-type array as a)

encoder uncertanity anaylses

低通滤波器是容许低于截至频率的信号通过， 但高于截止频率的信号不能通过的电子滤波装置。 (low-pass filter )

centralize algorithm in matlab

说明：  本程序是对PN序列的自相关性的仿真，希望能对各位有所帮助(This procedure is the autocorrelation of PN sequence simulation, hope you can help)

SIFT特征提取程序，matlab编写。SIFT是图像上的某种特征，具有尺度，光照，甚至仿射不变性，广泛的用于图像拼接，目标检测，目标跟踪等应用中。(SIFT descriptor)

说明：  转速、磁链闭环控制的矢量控制交流调速。控制电路是由滞环脉冲发生器、电流变换与磁链观测的封装模块、比例放大器模块、函数模块、常数模块（用于额定转速和转子磁链信号的给定）、转速调节器ASR、转矩调节器ATR、磁链调节器APR、以及三二变换器模块。(Vector Control AC Speed Regulation with Closed Loop Control of Speed and Flux Link)

说明：  matlab下的kalman实现，内附详细的解释，有助于初学者学习，望高手免进(matlab kalman under implementation, containing a detailed explanation to help beginners learn to avoid looking into the master)

matlb编写的IIR滤波器程序，按照给定指标采用模拟低通滤波器（巴特沃思低通或者切比雪夫低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。(IIR filter matlb prepared by the procedure, according to set targets and analog low-pass filter (Butterworth low-pass or low-pass Chebyshev) approximation to the ideal analog low-pass filter, and then through the bilinear transformation method for analog filtering device to digitize, the digital filter.)

MATLAB连接GOOGLE数据库的例程,Script to Retrieve Historical Stock Data from Google Finance(Script to Retrieve Historical Stock Data from Google Finance)