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this file is about band structure of 3d photonic crystal.in this program we use the pwe methode for calculation of band structure

matlab函数 k的阶乘 factrial(Matlab function k factorial factrial)

设计凸轮，对于偏心直动凸轮，可作出理论轮廓线和实际轮廓线(Design of the cam, the eccentric cam may be made to the theoretical contour and the actual contour)

根据华为5G创新大赛polar code部分提供的材料编写的polar code仿真代码，包含SC、SCL、BP三种译码算法。代码实现过程和所提供的材料保持高度一致，便于理解。(According to the Huawei 5G Innovation Competition Polar Code part ,the code is including SC and SCL two decoding algorithms. The code implementation process is highly consistent with the material provided and is easy to understand.)

Recovery phase with recursive Costas loop. Bpsk symbols to demodulate

matlab的常用命令速查，收录了matlab的多种常用命令，很好使用(commonly used commands Info matlab, matlab includes a variety of commonly used commands, a very good use)

MATLAB编程经典教程，中文译本，简单易懂(MATLAB programming classic handbook, Chinese translation, easy to understand)

说明：  该文件包含用MATLAB实现的OFDM 的源程序(Channel estimation for a MIMO-OFDM system)

史密斯原图的matlab实现，用户接口界面，显示输入波的原图形态(Smith achieve the maximum of Matlab, users Interface, show that the maximum wave form)

给定控制顶点，绘制出B样条曲线，不是很好，大家可以学习一下(The given control vertex arrays, fitting out of B spline curve, is not very perfect, we can learn about it )