CLFDT_0.3

Using Matlab to solve some engineering problems

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程序为地震勘探资料处理方法中的数值模型模拟正演，方法为射线追踪(The program forward numerical model for seismic exploration data processing method in the simulation, for ray tracing method)

VC++调用matlab画图，效果很好！值得看(VC++ Call matlab drawing, the effect is very good!)

光子晶体的能带图计算，其实质就是电磁本征值（复矢量场）的问题。利用平面波展开磁场，引入f(r)=1/eps(r)，再利用倒格矢G将f(r)展开，将两者代入光子晶体的支配方程，最后得到一个平面波展开的方法的线性方程组，最终转化为求解其特征值向量的问题。(Energy band diagram of the photonic crystal, its essence is the electromagnetic eigenvalues ​ ​ (complex vector field).The linear plane wave expansion magnetic field, the introduction of f (r) = 1/eps (r), re-use reciprocal lattice vector G will expand f (r), the two substituted into the governing equations of the photonic crystal, and finally get a plane wave expansionequations, and ultimately into solving the problem of its eigenvalues​ ​ .)

matlab入门教程里面含有简单的命令，各个函数的总结和概括(matlab introductory tutorial which contains a simple command, all functions summarize and generalize)

离散系统的Nyquist图，针对离散系统进行稳定性分析。(Nyquist plots of discrete systems, stability analysis for discrete systems.)

说明：  希尔伯特黄变换，经验模态分解，包络谱分析(Hilbert yellow transform, empirical mode decomposition, envelope spectrum analysis)

program of LDPC code

说明：  3G网络WCDMA,基于matlab的仿真应用，以及CDMA通信系统的仿真(3G networks WCDMA, matlab-based simulation applications and simulation of CDMA communication systems)