hankelframe2

运用matlab对ofdm的原理进行仿真，高效仿真验证ofdm的基本原理(ofdm basic principa)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

是教材matlab6.5（张志勇）的源代码,很有用的(Is a textbook matlab6.5 (Zhang Zhiyong) source code, very useful)

Ac Voltage Controller- fixed ac to variable ac simple simulation

Basic matlab codes r included

说明：  介绍了一种荃于MATLAB数字信号处理工具箱、MATLAB数据分析和MATLAB圈形对 象的时变数字信号瞬时频率枯计方法。这种方法利用时频分析结果来估计信号的麟时频率，其 中涉及时频分析、滤波、曲线拟合辞多种处理过程。处理过程的编程实现封较于用户界面上作 为文互工具的控件中，由用户通过交互界面逐步完成估计瞬时预率的工作.(Tsuen introduced a digital signal processing in the MATLAB toolbox, MATLAB and MATLAB data analysis of ring-shaped object digital signal time-varying instantaneous frequency of dry method. This method using the results of time-frequency analysis to estimate the signal frequency CHU, which involves time-frequency analysis, filtering, curve fitting a variety of speech processing. Programming process to achieve closure on the user interface than the text of each other as a control tool, by the user interface step by step through the completion of pre-estimated instantaneous rate of work.)

cstr的pid控制，自己编写的，双闭环控制(cstr of pid control, I have written, double-loop control)

《matlab有限元分析与应用》书后源代码，在matble中运行，对于有限元的初学者很有用。("Matlab Finite Element Analysis and Application" after the source code, in matble run, FEM for beginners useful.)

The graphical methods of data analysis are as important as the descriptive statistics to collect information the data. In this section we will see some of these specialized plots available in the Statistics toolbox and also others MATLAB main toolbox

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