LDPC-Coding

计算流体力学的网格划分，这是计算流体力学的基础(The computational fluid dynamics, this is the meshing computational fluid dynamics)

helical gear. it solution of helical gear problem

MATLAB学习，PPT文件。完全深入简出的教学方法，从最简单的着手。(MATLAB Learning, PPT files. Completely in-depth Jane out of teaching methods, from the simplest place to start.)

说明：  关于matlab方面对语音进行信号处理方面的内容(Matlab voice on the terms of the content of the signal processing)

果蝇算法的matlab编程实现，函数优化来测试(Drosophila algorithm matlab programming, function optimization to test)

基于matlab的图像处理技术，可以对bmp，jpg等格式的图片进行处理，可以反转(Image processing technology based on MATLAB, on BMP, JPG format image processing, can be reversed)

本程序是基于Matlab的三次样条插样法。(This procedure is based on Matlab-like cubic spline interpolation method.)

随机产生信息码求误码率 信息码长度（帧长64bit） 息码速率为10KHz（100us） 发送带宽20KHz（信息码速率的2倍） 发送信号功率2W 载波频率70MHz 采样频率280MHz（发送数据产生采样率） 20KHz方波 0KHz方波 0KHz方波高低电平采样点数 信息码采样点数 ASK调制的调制度ma=1-2/(2+alpha) 根据2ASK调制度确定alpha值(Random generation of information code for error rate 信息码长度（帧长64bit） Message length (64bit) 息码速率为10KHz（100us） The rate of interest rate is 10KHz (100US) 发送带宽20KHz（信息码速率的2倍） Transmission bandwidth 20KHz (2 times the rate of the information code) 发送信号功率2W Transmit signal power 2W 载波频率70MHz Carrier frequency 70MHz 采样频率280MHz（发送数据产生采样率） Sampling frequency 280MHz (transmit data generated sampling rate) 20KHz方波 20KHz Fang Bo 0KHz方波 0KHz Fang Bo 0KHz方波高低电平采样点数 0KHz square wave height sampling points 信息码采样点数 Information code sampling point ASK调制的调制度ma=1-2/(2+alpha) ASK modulation of the modulation system ma=1-2/ (2+alpha) 根据2ASK调制度确定alpha值 Determine the alpha value according to the 2ASK modulation system )

多目标整数规划的遗传算法NSGA-IImatlab源代码，主程序、初始化、计算适应度、排序、选择、交叉变异、重组，最后得到Pareto前言。可以跑通，下载即用，具体方法介绍博客上文章上都有。(Multi-objective integer programming genetic algorithm NSGA-IImatlab source code, the main program, initialization, calculate fitness, sorting, selection, crossover and mutation, recombination, and finally get Pareto foreword. You can run through, downloading, using the specific method described has an article on the blog.)

二维光子晶体禁带的MATLAB源码,光子晶体中因周期性结构而存在的频率禁带称为光子禁带，光子禁带的存在是光子晶体具有广泛应用前景的重要原因。 禁带越大，可控光的频带也越宽(Two-dimensional photonic crystal band gap of MATLAB source, photonic crystal structure exists because of the cyclical frequency band known as photonic band gap, photonic band gap is the existence of photonic crystal has a broad application prospects of the important reasons. The greater the band gap, controllable light the more wide-band)