Fourth-Order-Partial-Differential-

With this document, is intended to show some manipulation of signal processing techniques regarding continue and discrete signals, odd and even components, and periodic discreet signal, showing the mathematical part and the source code in Matlab on which it’s possible to try it out.

刘金坤《先进 PID 控制及其 MATLAB 仿真》书上第三章源程序。供大家参考。(Liu Jinkun " Advanced PID Control and MATLAB Simulation" Chapter III of the book source. For your reference.)

MATLAB入门必备（英文）。适合英语不太菜的初学者。^ ^(MATLAB entry required (in English). Food not suitable for beginners in English. ^ ^)

说明：  用于计算高频下的金属介电常数，主用侧重应用于有限元分析仿真中金属材料的物理属性。(The metal used to calculate the high frequency dielectric constant, the main emphasis used with finite element analysis simulation of the physical properties of metal materials.)

相关分析过程的matlab方法，采用累计贡献率的方法，混沌的判断指标Lyapunov指数计算。( Correlation analysis process matlab method, The method of cumulative contribution rate Chaos indicator for Lyapunov index calculation.)

rll(run length limited) code for channel simulate(rll (run length limited) code for channel's imulate)

实现带通信号经过带通系统后的结果与其等效的基带信号经过等效的基带系统的结果比较 (With communication, realize through bandpass system with the results of equivalent baseband signal after the results of the system of baseband equivalent comparison )

retrieve data from fig and export to excel

MATLAB应用大全一书的配书光盘第四章源代码,该文件夹收录了本书涉及的源文件。收录了一些优秀应用实例信息，便于读者学习了解。(MATLAB application of CD attached with books in the fourth chapter of the source code, this folder contains the book files. Includes some excellent examples of application information, convenient for readers to learn. )

this program will help you to perform spectral estimation using different algorithms such as spectogram