HHT-toolbox

置乱水印，用于数字水印加入前的处理，隐藏信息(Scrambling watermark, adding watermark for digital pre-processing, hidden information)

说明：  本算法是基于鸡群优化算法CSO优化SVM，可以大大提高VMD的分类准确率，提高优化时间。(This algorithm is based on CSO to optimize SVM, which can greatly improve the classification accuracy of VMD and improve the optimization time.)

integrated video navigation field matlab code

实现卷积码的BPSK调制、vitbi译码及软硬判决与未编码的BPSK误码率的对比(Convolutional codes to achieve BPSK modulation, vitbi hard and soft decision decoding and BPSK and uncoded BER comparison)

OFDM信道估计，该文件夹包括19个M文件，包括误码率检测，插值计算，瑞利信道等(OFDM channel estimation, the folder includes 19 M files, including bit error rate detection, interpolation, Rayleigh channel, etc.)

This is a matlab program that computer the gradient image using 1st derivative of Gaussian

PV MPPT Model using Solar Cell and P&O MPPT Algorithm

实现白光多缝衍射和双缝干涉，得到白光彩色的干涉条纹(Realization of white multi-slit diffraction and double-slit interference fringes get white color)

It describes downsampling

根据DFT的对称性，由原始序列计算所求的序列的DFT，用MATLAB 实现(According to the symmetry of the DFT, the DFT of the sequence of demand from the original sequence calculation with MATLAB)