PAM-modulation-and-demodulation

matlab7.0应用编程，中文资料，每章一个文件(Application Programming matlab7.0, English information, each devoted to a file)

实现通信系统里面的最基本的几个功能函数，如卷积，DTF，IDFT，已及模拟调制。(Communication systems to achieve a few basic functions inside a function, such as convolution, DTF, IDFT, has been and analog modulation.)

说明：  Fruit Fly Optimization

基于小波变换的数字水印技术用于matlab实行(Based on Wavelet Transform Digital Watermarking Technology for matlab implementation)

图形图像的峰值信噪比和归一化相关系数matlab编程源代码(Graphic image of the peak signal to noise ratio and normalized correlation coefficient of matlab programming source code)

说明：  通过对比两电平，五电平，我们设计一种7电平切换，得到更平滑切换(By comparing two levels and five levels, we design a kind of 7-level switching to get smoother switching)

说明：  实现了hu的七个不变矩，matlab实现，很实用(This code realize Hu s moment by matlab)

说明：  2代小波示意程序 2维小波变换经典程序 Daubechies小波基的构造 采用多孔trous算法(undecimated wavelet transform)实现小波变换 平移变换平移法(cycle_spinning)消除gibbs效应 提升法97经典程序 消失矩作用的程序 小波插值与小波构造 小波滤波器构造和消噪程序 小波谱分析mallat算法经典程序(2 Generation Wavelet indicated procedures classic 2-D wavelet transform procedures for Daubechies wavelet bases constructed using porous trous algorithm (undecimated wavelet transform) the realization of wavelet transform translational translational transform method (cycle_spinning) to eliminate Gibbs effect of lifting 97 vanishing moments the role of the classic procedure of wavelet interpolation procedure value structure of wavelet and wavelet de-noising filter structure and procedures of small Mallat algorithm for spectral analysis of the classical procedures)

说明：  硬阈值去噪的MATLAB算法实现 源程序代码(MATLAB hard threshold denoising algorithm source code)

matlab基础教程，适合初学者学习matlab的基本功能(Matlab based tutorial, suitable for beginners to learn the basic function of matlab)