digital_modulation_GUI

wavelet code in matlab. its representation of reading alphbets

基于lyapunov函数的模型参考自适应控制程序(based on lyapunov of MRAC)

消除信号wigner-ville时频分布中的交叉项问题(Eliminate signal wigner ville- cross terms of time-frequency distribution problem)

matlab练习程序（最大类间方差二值化图像）这里用的方法是《特征提取与图像处理》3.3.4里的。( matlab exercise program (Otsu binary image))

说明：  用matlab语言写的EM(Expectation maximization)算法,用于模式分类(Matlab language used to write the EM (Expectation maximization) algorithm for pattern classification)

MATLAB相关书籍，希望对大家有用，相互学习，相互促进(MATLAB-related books, we hope useful, learn from each other and promote each other)

说明：  这是黑龙江大学自控理论杨易朋同学在最优估计课程当中用matlab编写的递推增广最小二乘算法!(This is the theory of Heilongjiang University, Yang Yi-controlled peer students in courses optimal estimate prepared by using Matlab recursive least squares algorithm to broaden!)

腐蚀算法在边缘识别中的应用，具有较好的边缘识别能力。(edge corrosion identification algorithm in the application is on the brink of better recognition ability.)

scilab,开源数值计算方针软件。实现不同信噪比条件下的频域变换仿真程序，可完美兼容matlab。(Scilab, open source software for numerical calculation principle. Than the frequency domain transform simulation program under different signal-to-noise to achieve, can be perfectly compatible with matlab.)

Application of spread spectrum for satellite land mobile systems is difficult in satellite link because of synchronization and providing code or considerable Doppler shift. This is particularly high for LEO satellites. So that, a Doppler shift carrying a frequency in band S can reach to several tens of kHz. To estimate and compensate Doppler, a CW pilot carrier is used. The aim of this study is simulate Doppler frequency estimation using MIMO-OFDM technique. Finally, the proposed algorithm is compared to MMSE algorithm in order to insure its performance.