fractal

说明：  这是一个优化资料，适合初学者参考，如有错误请指正，谢谢(This is an optimization of information, suitable for beginners and are subject to error, please correct me, thank you)

说明：  信号包络分析，对信号进行包络分析，求出上包络，和下包络信号(Analysis of signal envelope)

ofdm系统源代码（包括qam调制、加噪、判决)(ofdm system modulation, noise, judgment)

在Matlab中设计GUI，按下相应的按钮实现方波信号和指数信号的卷积功能，并保存实验结果。(Design of GUI in Matlab convolution function, press the corresponding button to achieve a square wave signal and exponential signal, and save the experimental results.)

杜建明 编著，是少有的中文版的专门讲mathematica在电磁场理论中的应用的书籍，例子丰富(杜建明 edited, is a rare devoted mathematica in electromagnetic theory in the Chinese version of the book, rich in examples)

说明：  双音频按键识别 背景： 打电话拨号时，每次按键会发出不同的声音，这些声音实际上是由一些固定频率的正弦信号合成的。因为每个按键声音包含两个不同频率的正弦信号，因此也被称为“双音频”信号，简记为DTMF。这相当于是对不同键位用‘音频’进行了编码，如同计算机领域中用数字0和1对处理对象（包括键盘）进行编码。(Two-tone buttons identify Background: When you call dial, each key emits different sounds, which is actually made up of some fixed frequency sinusoidal signal synthesis. Because the sound of each key contains two sinusoidal signals of different frequencies, it is also known as &quot two-tone&quot signal, abbreviated as DTMF. This is equivalent to different keys using the ' audio' encoded, as the computer industry with the numbers 0 and 1 pair of processing object (including the keyboard) to be encoded.)

说明：  RKF78积分的Matlab源码程序，可以实现高精度的积分(RKF78 integral Matlab source program, you can achieve high-precision integral)

UC3854建模仿真，提高功率因素至99 ,采用matlab中的simulink进行仿真，UC3854典型电路，输入220V输出380V(The UC3854 modeling and simulation, to improve the power factor to 99 , using Matlab simulink simulation, the UC3854 typical circuit, input 220V output 380V)

100个MATLAB实用例子，请多多指教，共同交流学习！！(100 MATLAB practical examples, the lot of advice, and share their learning! !)

说明：  用MATLAB编写UT变换的程序，用于数学计算(UT transform using MATLAB program written for the mathematical calculations)