gauss_elimination

This file helps the various wireless projects

一共四个小程序。实现QAM调制，QPSK调制，二元熵函数的绘制，迭代法求离散信道容量。(QAM,QPSK)

说明：  有三种算法，分别是cmeans、fcm和som等对如iris和usps等数据的聚类。(There are three algorithms, cmeans, FCM and SOM to cluster data such as iris and USPS.)

计算SENSE重建图像中的g-factor,这是并行磁共振成像SENSE算法的关键一步(G-factor is the metric to quantify the amplificaiton of noise power in reconstructing SENSE accelerated image. The detail was presented in Pruessmann s 1999 Magn. Reson. Med. paper. In theory, g-factor is the pixel-by-pixel ratio of the image variance between the SENSE reconstructed image and un-accelerated image. And g-factor depends on: (1) the k-space data trajectory (2) coil sensitivit profiles (3) noise covariance matrix of the array coil)

直接序列扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真(this is a pn sequences mode)

matlab功能大全，包含所有基本语句和用法，适于初学者入门(matlab Function, contains all the basic statement and usage, is suitable for beginners to get started)

sphere collision in a square domain

对LSB替代法进行的改进，比LSB替代法得到的图像质量更好。(LSB substitution method for the improvement of substitution than the LSB get better picture quality.)

ce tp consiste a tatoué une image avec le principe de wong

lingo 程序，此为工件排序的代码,可以归为运筹学的时间序列问题。(lingo （how to range）)