QPSK调制的matlab仿真

两个图像质量评价函数，psnr峰值信噪比，正则均方误差nmse，能可用于去噪图像和压缩图像的质量评价，很有用啊。(Two image quality evaluation of the function. Including psnr PSNR, it is mean-square error nmse other. Images can be used for de-noising and compression of image quality evaluation.)

说明：  声波方程正演模拟大模型样例。 包含三个地质层，分别对应速度可以自行修正。 震源函数是雷克子波。 C源程序，输出结果Matlab绘制。(Acoustic wave equation forward modeling big model of the sample. Consists of three geological layers, corresponding to the speed you can correct itself. Lake wavelet source function is. C source code, the output of Matlab draw.)

说明：  塞米尔公式，可计算光纤在不同波长下或不同掺杂材料以及浓度时的折射率(refractive index for optical fiber)

信号与系统基础教程 MATLAB例题 (Signals and systems based on MATLAB Tutorial Example)

说明：  matlab小波分析高级技术的书，pdf格式，很不错(The high technique of Wavelet Analysis based on Matlab)

基于元胞自动机的室内人员疏散模拟代码（存在人员运动规则问题）(Indoor Evacuation Simulation Code Based on Cellular Automata(Existing Rules of Personnel Movement).)

二维云模型，matlab脚本编写，点开即可运行，效果很好(Two dimensional cloud model, matlab scripting, click open can run, the effect is very good)

基于主成分分析的人脸识别，应用K-L变换作特征处理(Face recognition based PCA)

说明：  ou should upload at least five sourcecodes/do

MVDR方法是波束形成的经典方法，可使期望方向的波束尽可能多通过同时抑制干扰，稳健性强。(MVDR beamforming method is the classic way, can look forward to the direction of the beam while suppressing interference by as much as possible, robust and strong.)