RS_BCH

matlab Reference Model

very valuble video processing algorithems

Worked a load flow problem for n-element generation and consumption with losses in the lines. The zip file contains all the files needed to solve any problem of load flow. Comments in Spanish.

多网格求解泊松方程，给出并解释了一个如何使用多网格求解的过程(I give a short explanation of how to use multigrid to solve the Poisson equation in cylindrical coordinates for a solid conducting pipe. I also explain how to use a non-uniform grid to optimize the problem. )

采用mathcad编程实现的永磁同步电机设计的程序，利用mathcad计算得到的数据导入Ansoft中，利用有限元可以验证解析法实现的电机设计的正确性与有效性。(Mathcad programming using a permanent magnet synchronous motor design programs, data import use mathcad calculated Ansoft, the use of finite element can verify the correctness and validity of the analytical method to achieve the motor design.)

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")

mapping the signal file

数字信号处理实验，快速傅立叶变换，内含有matlab实验m文件以及实验报告，供大家参考。(Digital signal processing experiment, fast Fourier transform, contains matlab experiment m documents and the experiment report for your reference.)

用来在matalab上直接使用的surf代码(Surf code to be used directly on MATALAB)

grundlage der elktrotechnik