digital-modulation

Distortionless data hiding based on integer wavelet transform (Watermark Extraction)

STK软件平台对garada卫星系统的仿真,可见性，覆盖面积和经历时间分析(simulink of satellite system by STK )

实现hufman功能，能将任何输入的文本转化为二进制文件(Achieve hufman function, can enter text into any binary file)

说明：  四阶Runge-Kutta法解常微分方程组(Fourth Order Runge-Kutta Method for Solving Ordinary Differential Equations)

DS_CDMA移动通信系统matlab仿真(DS_CDMA communication system simulation matlab)

2fsk和matlab程序 对2fsk进行M语言编译码，实现功能(2fsk and matlab yingyong matlab jinxing fangzhen)

本例是matlab算法实例，利用matlab实现非线性方程求解。(Using matlab to achieve a non-linear equation solver)

Make the Huffman-tree from the lengths of the Huffman codes. The Huffman codes are also needed, and if they are known, they can be given as an extra input argument.

A timing error detector for Communication systems with simulink. # Required versions Matlab 5.2.1, Simulink 2.2.1 # File description 1. ti_det1.m (simulink version 5.2.1) An s-function to be used for timing detector. For detailed information, Refer to the following paper,K.H. Mueller and M. Mueller, Timing recovery in digital synchronous data receivers, IEEE Trans. Comun., vol COM-24, no. 5, May 1976. 2. m_delay3.m (related m-file) An s-function operating as sample and hold with clock port. 3. test1.mdl A timing recovery system to test the timing detector.

C:Documents and SettingsAdministrator桌面\oqpsk基本的调制解调程序集(包括BPSK,QPSK,QAM,GMSK等)基本的调制解调程序集(包括BPSK,QPSK,QAM,GMSK等)chapter3(In this directory, we can find the twenty-eight files. The relationship between file name and the number of program written in the book is shown in as follows.)