p-0758--Telephone-Billing-System

说明：  美国著名教授agrawal写的非线性光学原理及应用，是一本很好的学习非线性光学的书籍，里面包含了中文和英文版本(Written by American professors agrawal nonlinear optics and applications, is a good learning books on nonlinear optics, which includes the Chinese and English version)

采用MATLAB语言编译的线性方程组求解函数，希望对大家有用(resolving overdetermined linear equations)

matlab文件实现QPSK调制，信号频率1，采样频率100(QPSK Modulation)

宽带相干信源DOA估计及其阵列校正方法 (Broadband DOA estimation of coherent sources and array calibration method)

水平竖直线交点就是输入些水平线段和竖直线段的坐标（文件输入） 然后输出几个交点(The level of vertical lines is the intersection of some level of input the coordinates of line segments and vertical segments (file type) and then the output of several intersection)

关于三相三电平逆变器IGBT的一个仿真模型(On the three phase three level inverter IGBT a simulation model)

视频格式转换，包括mpeg转为yuv和yuv格式的352*288插值为704*576.其中mpeg转为yuv需要调用文件夹中的两个dll(此为matlab工具箱提供)(Video format conversion, including mpeg to yuv and yuv format 352* 704* 288 interpolated to 576. Yuv to mpeg which folder you want to call the two dll (This is provided matlab toolbox))

newton numerical method

在Matlab对FDTD进行仿真，并对一维，二维及三维电磁传播环境分别编写了程序(On the FDTD simulation in Matlab, and the one-dimensional, two-dimensional and three-dimensional electromagnetic propagation environment programs were prepared)

拨号按键识别GUI界面程序，原理采用DTMF，本程序随意按下六位数字，当按下第七位的时候屏幕清空，点击解析，结果将显示在文本框中，并有相应的声音。(GUI interface dial buttons identification procedures, principles using DTMF, this program free to press the six figures, when you press the seventh, when the screen is empty, click the analytical results will be displayed in the text box, and a corresponding sound.)