homotopy

此代码是采用matlab编写的最优化算法，主要是对求解函数进行最优化分析，最终求出最优解。(This code is prepared using matlab optimization algorithm, the main function is to solve the optimization analysis, the final optimal solution obtained.)

matlab hoe to create S to N goodluck

turbo码高码率2/3码率的matlab编码实现，译码方式为log-MAP算法，删除矩阵为[1 1 1 0](achieve high rate of turbo codes)

计算阶跃折射率光纤传播常数、归一化频率、截止波长、导模数量等( Calculate for Step Index Fibers (using MATLAB): a) Propagation constant (β) b) Normalized propagation constant (b) c) V number (V) d) Check whether the fiber is single mode or multi mode. e) Graph between normalized propagation constant (b) and V number f) Cut off wavelength (λc) g) Number of modes traveling in fiber (Ms) )

基于SIFT的图像配准，使用的是matlab自带函数(SIFT-based image registration, using its own function matlab)

用matlab模拟出十字路口的车辆通行情况。车流量可以自己设置，并且绘出了图象能直观地模拟出十字路口的通行状况(Use Matlab to simulate the crossroads of vehicle traffic. Can set up traffic, and draw the image to visually simulate the crossroads of the prevailing situation)

first order filtering

to generate unimorm random numbers between 0 & 1 using lcm method

EMD的扩展算法，集合经验模态分解(EEMD)， 程序完整可运行(Extension algorithm of EMD, ensemble empirical mode decomposition (EEMD), complete and runnable program)

说明：  用于调用系统时间,并且显示出来，非常实用(Used to call the system time, and displayed a very practical)