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simulation model from matlab. sharing for acedamic purpose

这是一个对解偏微分方程进行求解的matlab程序(BVP5C Solve boundary value problems for ODEs by collocation.)

A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system.(A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system. This avoids the problems with the standard approach, namely: the quasi-periodic Green s function is slow to evaluate, it diverges at Wood s anomalies, and it does not handle large aspect ratios well. Our new approach cures all three issues, and can easily be `wrapped around an existing code (e.g. fast-multipole acceleration) for the isolated-obstacle scattering problem. It includes the latest talk slides: "A new integral representation for quasi-periodic scattering problems in two dimensions")

电力系统最优潮流问题解析Optimal Power Flow Problem Analysis电力系统最优潮流问题解析(Problem Analysis for Optimal Power Flow Optimal Power Flow Problem Analysis Problem Analysis for Optimal Power Flow)

In this simulink model , baseband 8-ary PAM detection is simulated .A half-sine pulse shaped PAM signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The 8-ary PAM signal transmitted is recovered at the detector output.

OFDM系统仿真函数，可用于信道估计以及物理层安全领域(OFDM system simulation functions for channel estimation and physical layer security field)

四阶累积量ESPRIT方法仿真讨论，很实用。(ESPRIT method for fourth-order cumulant simulation discussion, it is practical.)

利用MATLAB求微分解方程，程序简单实用，可以让大家轻松掌握(Find micro-decomposition equation using MATLAB, the program is simple and practical, so that everyone can easily grasp)

利用MATLAB实现的图像的特征匹配，对于图像拼接和全景图像生成至关重要(MATLAB implementation of the image using the feature matching, image stitching for panoramic images and to generate essential)

变压变频调速 matlab simulink仿真(AC motor double closed loop speed control system MATLAB simulation)