code

matlab入门教程，初学者的良师益友，值得一阅(matlab Tutorial, beginner' s mentor, is worth reading)

这是一个模式识别中关于主成分分析的特征提取的matlab源码 (This is a pattern recognition principal component analysis on the feature extraction matlab source)

matlab中，循环语句的教学以及应用。包含部分个人总结和感悟(the cycling sentence using in matlab. including some personal feelings)

说明：  二维数据集Parzen方窗非参数估计PDF(概率密度函数)，三维结果显示，有图，有完整说明文档和程序运行说明，matlab编程环境，此为模式识别小作业 parzen(Dimensional data set Parzen Window non-parametric estimation side PDF (probability density function), three-dimensional results show that map, with complete documentation, matlab programming environment, this is the pattern recognition of small operations)

模糊算法的实现，控制专业做设计时可以参考一下(Fuzzy algorithm, control of a professional to do the design for reference)

在MATLAB中实现用高斯消元法求解线性方程组!(In MATLAB to achieve using Gaussian elimination method for solving linear equations!)

说明：  搭建切换系统的模块，很有用的哦,在此基础上很容易搭建时滞系统的仿真模块哦，还可以提出宝贵的意见修改哦(it is very useful for you to simulation a switched system)

直接序列扩频通信系统，快速傅里叶变换的matlab程序(Direct sequence spread spectrum communication systems, fast Fourier transform matlab program)

VC++调用matlab画图，效果很好！值得看(VC++ Call matlab drawing, the effect is very good!)

This paper presents a new algorithm to extract the fetal ECG from an ECG recorded on the mother’s abdomen. The algorithm consists of two steps: first, ECG of fetus is extracted from the original signal using a two-level wavelet transform. We use Daubechie wavelet transform, which is similar in shape to heart beat wave. The resulted signal is then low-pass filtered using the Savitzky-Golay smoothing filter to attenuate the effect of noise. The filtered signal is considered as the fetal ECG. The algorithm was applied on both synthetic and real ECG signals. The results in this paper show that the proposed algorithm has promising performance.