digital_communication

多种多任务学习算法的工具箱 有代码有使用手册 matlab版(the toolbox of multi-task learning algorithms (matlab version))

使用matlab画圆，对图傅里叶变化，零频移中，反变换实验(test fft and ifft)

分形，是以非整数维形式充填空间的形态特征。分形可以说是来自于一种思维上的理论存在。(Fractal, is filling in the form of non-integer dimension of space morphology. Fractal can be said to come from the existence of a theory of thinking.)

This is a simple program that uses distance tool in matlab to determine geometry feature of the face, which then can be classification or clustering , or face recognition

权重PCA程序,程序是在PCA的基础上，对不同的主成分分配适当的权重，得出的算法程序，分类器采用距离分类器。(WPCA code)

先建立lorenz吸引子，在分别做出X,Y,Z的时序图，最后用X重构向空间，在TAU取不同值时，图的效果也不一样(Lorenz X phase three-dimensional reconstruction of attractor figure)

周期图法谱估计需要对信号序列“截断”或加窗处理，其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积，导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息，使估计谱的熵最大。(Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the result is an estimated power spectral density of the signal sequence of the real spectrum and spectral convolution window, resulting in the generation of errors. The procedures were designed periodogram, maximum entropy power spectrum estimation and the Welch method and their comparison, the maximum entropy power spectrum estimation purpose is to maximize the retention of truncated after the loss of the " window" than the information signal, the entropy of the estimated spectrum maximum.)

一个关于Matlab数学工具软件实例简明教程的电子文档(A mathematical tool Matlab instances on Concise Guide to the Electronic Document)

lorenz混沌问题的解法，是求解两点边值问题，初值问题(lorenz)

用于OFDM通信仿真的同步算法源代码，对作ofdm同步者很有帮助(For OFDM communications simulation synchronization algorithm source code, for those very helpful for OFDM synchronization)