chapter27

数字信号调制动态演示系统，包含AM,PM,FM等多种演示，运行界面操作简单。(welcome to downloads this code !thank you!)

通过本试验，基本掌握FFT算法的实现原理，同时能利用MATLAB语言编写完成FFT算法，并对给定的信号进行频谱分析。实验设备：通用计算机＋MATLAB 6.0软件。 (Through this test, basically mastered the FFT algorithm implementation principle, while able to use MATLAB language to complete FFT algorithm, and a given signal spectrum analysis. Experimental equipment: general-purpose computer+ MATLAB 6.0 software.)

FSK modulation and FSK demodulation

HHT是历史上首次对Fourier变换的基本信号和频率定义作的创造性的改进。他们不再认为组成信号的基本信号是正弦信号,而是一种称为固有模态函数的信号(HHT is the first time in the history of the Fourier transform basic definition signals and frequencies for creative change Progressive. They will no longer signal that the basic component signal is sinusoidal signal, but as an intrinsic mode function signals)

对于现有文件，实现lzw的编码与译码，注意各文件之间的联系(For existing files, the use of coding libraries, compile and interpret realize barcode)

本文件是基于MATLAB的声音信号频谱分析仪的源代码(This document is based on MATLAB)

数学建模案例MATLAB实用程序百例，其中包括了matlab的入门教学，与一些经典的例子（包括源代码）。(Mathematical modeling case MATLAB utility 100 cases, including teaching matlab entry, with some classic examples (including source code).)

菲涅尔公式的matlab仿真方法，并画出相应曲线。(The Fresnel formula Matlab simulation method, and draw the corresponding curve.)

Perl 语言编程 第三版 作者:Larry Wall, Tom Christiansen, and Jon Orwant 译者:何伟平 (The third edition of the Perl programming language: Larry Wall, Tom Christiansen, and Jon Orwant Translator: weipin)

根据Zeller公式计算任意日期是星期几。说明一下，压缩包中有两个是复件，是用来压仓的，以确保满足上传条件（上传文件大于1K）。(weekday for any day)