Adaptive grid

描述小球在水平和竖直弹簧上的跳动模型（原创）(Describe the ball in the horizontal and vertical jumps on the spring model (original))

计算PSNR值，一个不错的算法，值得看一下(Calculation of PSNR value, a good algorithm, it is worth a look)

he "while" loop uses a formula in ISSO, Chap. 10 the "identical" variable in the formula

本人编写的QC-LDPC码的完整实现，采用阵列校验矩阵，极其简单，适合入门(A easy-to-learn source code of QC-LDPC encoder)

基于树形图的支持向量机（D-SVM）对数据集进行训练和执行多类分类。两个主要功能是：Train_DSVM：这是用于训练的功能Classify_DSVM：这是用于D-SVM分类的函数

the simulink model for wavelet ber

说明：  灰狼优化算法，直接就能用，里面包含有23种测试函数，做实际应用时，需要调一下。(Gray wolf optimization algorithm, which can be used directly, contains 23 kinds of test functions, and needs to be adjusted in practical application.)

小世界，无标度网络的生成及度分布，集聚系数等计算的程序代码(Small world, scale-free network generation and distribution, the clustering coefficient calculation code)

适合初学小波的同志，小波图像增强原理底层。严格高低频分解重构，没有使用小波工具库。(Suitable for beginners wavelet comrades, the underlying principle of wavelet image enhancement. Strict high-low-frequency decomposition of reconstruction, did not use the wavelet tool library.)

WCDMA - Simulation of DSSS and QPSK, get number of bit errors. U can change number of chip per bit to see the result better when increasing.