Matlab

image hiding introduction procedure

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded), to spectral methods for the numerical solution of partial differential equations. The use of cosine rather than sine functions is critical for compression, since it turns out (as described below) that fewer cosine functions are needed to approximate a typical signal, whereas for differential equations the cosines express a particular choice of boundary conditions.

在MATLAB下使用Doolittle算法对矩阵进行LU分解(Doolittle algorithm in MATLAB using the matrix LU decomposition)

additive white gaussian noise in matlab

张正友标定法matlab工具箱，以及详细的文档说明(zhangzhengyou calibrationtoolbox and document)

A Progrma solve TSP Problem with EM heuristc method.

用周期循环检测算法检测： 首先运行a.m程序，通过此程序运算得出循环频率a值； 再运行zhouqi.m程序，对a值进行确定，通过周期循环算法对信号进行检测； (With cycle detection algorithm to detect: First run am program, through this program computing a value obtained cyclic frequency zhouqi.m then run the program, for a value determined by the cycle algorithm of signal detection )

基于matlab simulink搭建的buck降压斩波电路，模型正确可直接使用(Based on the the matlab simulink structures buck buck chopper circuit, the model is correct and can be used directly)

产生1ms方波，自己看着办吧，这是我省的吧，，请大家多多包涵哦哦哦哦哦 哦哦哦哦(1ms produce a square wave)

power system mmc hvdc .you can easy learn. tt,s a wonderful artticle for you to learn.~~~~~~~~~~~(power system mmc hvdc .you can easy learn. tt,s a wonderful artticle for you to learn.~~~~~~~~~~~~)