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说明：  主元分析方法（PCA）是一种基于多元统计分析的数据降维方法, 它利用过程变量间的相关关系, 建立正常工况下的主元模型, 通过检验新的数据样本相对于主元模型的背离程度, 从而发现异常和故障。 (Principal Component Analysis (PCA) is based on multivariate statistical analysis of the data reduction method, which uses the correlation between process variables and establish the normal condition of the main element model, by testing samples of the new data relative to the principal component model departure from, and thus abnormal and failure.)

PATCH BASED BACKGROUND INITIALISATION

SLM（selected mapping）是正交频分复用中用于减少系统峰平比的方法。(SLM (selected mapping) is orthogonal frequency division multiplexing system used for PAPR reduction method.)

时间序列分析示例程序，用matlab建立AR(P)模型的完整过程，简洁易懂，备注完整。(Time series analysis sample program, using matlab to establish AR (P) model the complete process, easy to read, notes intact.)

说明：  自己写的利用形态滤波方法去ECG基线漂移，附MIT-BIH心电数据库（受上传文件大小所限，只包含第124号数据供程序验证）(Written by myself, ECG baseline drift is removed by morphological filtering method, with MIT-BIH ECG database (limited by the size of uploaded files, only data No. 124 is included for program verification))

最小二乘支持向量机代码，最小二乘支持向量机很好地解决了普通支持向量机耗时的问题，很适合用于及时诊断故障(fuzzy least square vector machine)

拟合问题引例及基本原理，用数学软件求解拟合问题(Fitting the cited cases and the basic principles of using mathematical software to solve the fitting problem)

MATLAB PROGRAM TO CHECK CONTROLLABILITY AND OBSERVABILITY

Iris detection with Hough transform

xwch_test.m是主测试文件；biaoji.mat存放滤波器系数；xiangweicha.m用FFT计算相位差。 仿真框架为： 1.标记信号和双音信号续接作为发送信号； 2.对双音中一个频率分量的相位做偏移，再经过一个低通滤波器（引入线性相位，模拟收发不能同步测量现象）后，作为收到的信号； 3.用一个检测信号对收发信号进行相关运算； 4.画出收发信号以及相关处理后的信号。找出相关信号的那个尖点，从而推算出收发双音信号0相位点； 5. 输入0相位点位置，计算相对相位差。(xwch_test.m is the main test file biaoji.mat store filter coefficients xiangweicha.m calculated using FFT phase difference. Simulation framework: 1. Mark signals and then as a two-tone signal continued to send signals 2. On a two-tone frequency components of the phase shift to do, and then through a low pass filter (the introduction of linear phase, simulation can not simultaneously send and receive measuring the phenomenon), the as received signal 3. using a detection signal of the transceiver signal correlation operation 4. draw send and receive signals and related processed signal. Correlated signal of the cusp, which calculate the two-tone signal transceiver 0 phase point 5. Enter 0 phase point position, calculate the relative phase difference.)