cf74cd2a

channel simulation model for matlab

基于阈值分割心音信号，阈值可根据信号调整，程序给出心音分割的起止位置。(Threshold-based segmentation of heart sound signals, the threshold can be adjusted according to the signal, the program gives the starting and ending positions of heart sounds segmentation.)

rs erasures and decoding using the massey berklamp algorithm

说明：  单发单收的16PSK仿真，并统计系统的误码率(One received 16PSK single simulation and the BER statistics)

采用神经网络技术模拟地震发生的频率与震级。(using neural network technology simulated earthquake frequency and magnitude.)

本程序采用自相关法求混沌时间序列重构的时间延迟。(This procedure using the autocorrelation method for chaotic time series reconstruction time delay.)

说明：  基于非负矩阵分解（NMF）的人脸特征提取算法，NMF基本思想是找到一个线性子空间W，使的构成子空间的基本图像的像素点都是正值，而且人脸图像在子空间上的投影系数也是正数(Non-negative Matrix Factorization (NMF) of facial feature extraction algorithm, NMF basic idea is to find a linear sub-space W, so that the composition of sub-space of the basic image pixels are positive, and face image in the sub-space projection coefficient is positive)

code for lifting... this is the matlab code for liftinf

stbc for 2 tx and 2 rx

Iris segmentation based on integro-differential operator