Second_order_plus_zero

first order filtering

this program simulates 1D electromagnetic Maxwell equations with absorbing boundary condition to prevent reflection from the boundaries of the problem space. this is by using finite difference time domain method FDTD

power flow solutions using Newton Raphson technique on IEEE 14, 30 and 57 bus system. useful for those who want to learn optimization technique in power system. if you find any difficulty mail me or any suggestion is welcome to improve this code.

参加数学建模培训用的matlab教程，有基本用法，还有实例，一个星期之内可以学完，而且会用。 内容如下： MATLAB入门 Matlab作图 线性规划 无约束优化 非线性规划 微分方程 最短路问题 行遍性问题 数据的统计描述与分析 回归分析 计算机模拟 插值 拟合 每讲都包含源码，完全可用。 希望大家多多支持,给个好评。 (Participate in the training of mathematical modeling used matlab tutorial, basic usage, as well as examples of a week to learn End, and will be used. As follows: MATLAB Introduction to Matlab mapping optimization linear programming linear programming differential line shortest path problem over the problem of statistical description and analysis of data, regression analysis, interpolation fitting computer simulation of stresses are included for each source, completely free. Hope you can enjoy, give praise.)

说明：  《Matlab从入门到精通》所有的源程序。(《Matlab from entry to the master》 all of source code.)

Gardner位同步算法，适用于MPSK信号，能够快速地获取位同步信息，对于研究者来说具有参考价值。(Gardner bit synchronization algorithm, suitable for MPSK signal, can quickly obtain bit synchronization information, the researchers have reference value)

程序为将a律十三折线的PCM信号经量化后的信息编为0101二进制的编码。(Procedures will be a law broken line thirteen of the PCM signal after quantization information as binary code 0101.)

计算DWT小波变换的JND值（恰可察觉性失真），用于图像水印的实现。以及DCT的水印实现(Calculate the DWT wavelet transform value of JND (Just Noticeable Distortion) for the image watermark. As well as the watermark of the DCT)

基于灰度的人眼定位，matlab，积分投影法实现人眼识别(eye detection)

基于MATLAB的单自由度机械振动系统的仿真，可以根据仿真描述运动规律(Simulation of single degree of freedom mechanical vibration system based on MATLAB, the simulation can be described according to the movement of)