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there is a matlab code about qam in the communication.

二进制调制解调系统 仿真程序中的常用函数(common function)

Matlab参考资料，对Matlab的多种功能都有介绍，有详细的例子的讲解。(Matlab reference materials, and have introduced a variety of functions in Matlab, a detailed example to explain.)

本光盘的程序是《MATLAB7.x与C/C++混合编程》配套的源程序，请对照该书使用(This CD is the procedure " MATLAB7.x with C/C++ mixed programming" complementary source, please use the control book)

3点拉格朗日插值计算离散函数的导数。可自行输入离散值。(3:00 Lagrange interpolation calculate the derivative of a discrete function. Can enter their own discrete values.)

简易实现车牌识别，有GUI界面。车牌识别系统将获取的车辆图像进行一系列的处理后，以字符的形式输出结果(Simple license plate recognition with GUI interface.The license plate recognition system processes the acquired vehicle image in a series of ways and outputs the results in the form of characters.)

说明：  主要应用于对地震信号，数据的去噪，构造了地震数据然后去噪对比结果，(It is mainly used to denoise seismic signals and data, construct seismic data and then denoise the contrast results.)

自己编写的通用2维框架结构，可以计算模态、静力、动力响应 地震反应(I have written the common two-dimensional frame structure, you can calculate the modal, static and dynamic response of the seismic response)

这本matlab简明教程介绍了很多数值算法，适合初学者(This book tell us some methods about mathatics)

通过matlab编制程序，对非线性方程组迭代求解。(Through matlab programming, iterative solution of the nonlinear equations)