adeuler

三层平板光波导，计算有效折射率，求解波导色散,(Three planar waveguides, calculate the effective refractive index of the waveguide dispersion solution,)

利用两段信号的相对差，对非整周期采用信号的频谱进行幅值和相位的校正。(The amplitude and phase of the signal spectrum are corrected by using the relative difference of the two segment signals.)

cox 的水印源码, 有多个檔，psnr, RGB to YIQ, YIQ to RGB(cox watermark source, there are multiple files, psnr, RGB to YIQ, YIQ to RGB)

这是从英文网站上下载的程序，可以实现ofdm整个系统的全过程(This is the English site download procedures, ofdm can be achieved throughout the entire process of the system)

说明：  an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.

说明：  喷泉码的LT码的编码的matlab的部分仿真程序(Simulation of fountain codes )

Frame subtraction code written by me using matlab it takes a video s first frame and subtract each frame from it. it shows output video and input video side by side

MATLAB符号函数可视化教程MATLAB symbolic function, visual tutorials(Tutorial MATLAB symbolic function visualization MATLAB symbolic function, visual tutorials)

Calculate the histogram and the entropy of any image. The entropy is calculated using different methods.

PCA,LDA,ICA等的matlat源程序，比较全， 希望对大家有所帮助！(PCA, LDA, the ICA matlat source, the entire comparison, we hope to help!)