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matlbs file for lyapanof

Resolution of heat equation using Crank Nicholson method. Implemented in matlab language.

用MATLAB实现PSO算法，程序没错误，可以直接运行(Implementation of PSO algorithm with MATLAB, the program no error, can be directly run )

直流斩波电路的mtalab仿真实例，可以观察波形，便于延伸各种仿真，继续仿真(DC chopper circuit mtalab simulation example, the waveform can be observed, to facilitate extension of the simulation, the simulation continues)

这是有关MATLAB在电子信息中的应用程序，包括信号的表示，求解零输入分量、信号的频谱分析和滤波，求解线性系统的冲击函数和卷积，程序简单，适合初学ATLAB的同学。(It is about MATLAB applications in electronic information, including the representation of the signal, solving zero input component, spectral analysis and filtering the signal, impulse function and convolution solving linear systems, the program is simple, suitable for beginners ATLAB classmates.)

双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。DTMF信号有16个编码。利用DTMF信令可选择呼叫相应的对讲机。(Dual tone multi-frequency, high-frequency and low-frequency group composed of groups, high-frequency group contains four frequencies each. A high-frequency signal and a low frequency signal is superimposed to form a combined signal representative of a number. DTMF signal has a 16 code. DTMF signaling to the appropriate use of the intercom call.)

利用matlab编写的遗传算法程序，很经典，是从一个毕业的师姐那要过来的，跟大家分享一下(Prepared using matlab genetic algorithm, very classic, is a graduate of the senior sister apprentice that to come and share with you)

matlab30个案例算法之一，对学习有很大帮助(the one of matlab30 case algorithm learning)

此例程用于求任意信号的1/3倍程频谱,是我毕业设计中的一个小小的部分,经验证算法正确.(This routine used for arbitrary signals 1/3 times the range of spectrum, is my graduation project in a small part of the experience of the correct card algorithm.)

This is a matlab implementation for calculating PSNR