Sift2

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

三电平载波同相层叠PWM方法谐波频谱分析及滤波器设计(Carrier-phase three-level PWM method cascading harmonic spectrum analysis and filter design)

This is an efficient implementation of PCA, which use smaller dimension of the data matrix to compute the eigenvectors

A tool for OOP overloading of the size() method, imitating I/O conventions of MATLAB s native SIZE. (This function is an OOP aid for overloading the size() method in user-defined classes. If the user provides the vector of dimensions of a hypothetical array object, parseSize will take care of the main input/output argument processing in a way that imitates the conventions of MATLAB s usual SIZE function. )

实现微分方程向前查分 （教材为微分方程数值解，习题5.2.4）(forward difference)

高阶普估计工具箱，内含许多用于高阶普估计的matlab函数(High-end S )

compressive sensing theory

程序目的：间隔取点 可以自由选取将一组时间序列的采集点：如愿采集点间隔为0.01s,通过程序可自动得到采点间隔为0.05s时间序列。( Program purpose: to take point interval can be freely selected a set of time series of the collection point: to do so collection point interval of 0.01s, the program can automatically be taken through the point of 0.05s interval time series.)

codes for Interpolation and fitting lines

测量稀土元素的光谱的matlab程序,可以作图，十分简单方便(REE spectra measurements matlab program, you can plot is very simple and convenient)