matlabChapter_3

《MATLAB仿真在现代通信中的应用》（徐明远）随书光盘(CD with the book " MATLAB simulation applications in modern communications" (Xu Mingyuan))

Generate PWLF file from Matlab for Cadence spectre simulation

使用迭代式阈值算法来提高图像对比度。可以指定某个色阶作为阈值，所有比阈值亮的像素转换为白色；而所有比阈值暗的像素转换为黑色。 (The use of iterative threshold algorithm to enhance image contrast. You can specify a color scale as the threshold, all pixels lighter than the threshold into white and all pixels darker than the threshold value is converted to black.)

协作通信中的解码转发程序，包括卷积编解码，8PSK调制(Cooperative communication in decode-and-forward procedure)

说明：  灰色预测的实现代码，包括总开始计算到后面的各种检验，残差检验、后验差检验等(Gray prediction code, including the total start to the back of a variety of test, the residual test, a posteriori differential test)

本文利用Matlab／Simulink软件，以无线电调幅广播发射与超外差接收系统为例，对“通信电子电路”课程中重要的通信系统单元电路进行了仿真和分析，给出了仿真模型和较为详细的各点仿真波形，并结合实际给出了多路系统的仿真结果。将该Matlab仿真引入课程教学。可以使学生在学好课程的同时，了解和掌握通信系统建模与仿真的方法。(In this paper, the use of Matlab/Simulink software to the radio superheterodyne AM radio receiver system with the launch as an example, the " communication electronic circuits" course an important element of communication system circuit simulation and analysis, the simulation model and the more detailed Simulation waveform points, combined with the actual multi-channel system is given the simulation results. Matlab simulation of the introduction of the teaching. Will enable students to study courses at the same time, understanding and knowledge of modeling and simulation of communication systems approach.)

gps卫星中利用精密星历文件提供的钟差信息没差出任意时刻的钟差值(gps satellite ephemeris file using precision clock error information provided at any time without deviation from the clock difference)

包含了几个Matlab的示例仿真模型，用于展示如何控制一个直流DC电机。同时包含了一个文档教程，介绍不同控制器PID，和带有状态反馈的极点配置。可以作为你在Simulink中学习开发控制系统的入门教程。(Contains a few example of Matlab simulation model is used to demonstrate how to control a DC-DC motor. At the same time a document contains a tutorial to introduce a different controller PID, and with state feedback pole assignment. As you study the development of control systems in Simulink Tutorial.)

基于互功率谱的时延估计，这个有中文注释，看得明白，光纤陀螺输出误差的allan方差分析。( Based on the time delay estimation of power spectrum, The Chinese have a comment, understand it, allan FOG output error variance analysis.)

GM（1，1）源代码，计算原始数据的残差、关联度、小误差概率等。同时画出原始数据和预测数据对比图(GM (1,1) source code to calculate the raw data residuals, correlation, and so a small error probability. At the same time draw the raw data and forecast data comparison chart)