fft

music change speed中，jiasu.m是让一首音乐旋律速度加快播放，jiansu.m是让一首音乐旋律速度减慢播放，两个情况下都不改变音乐的基调。(Music change speed, jiasu.m is to allow a faster melodic playing, jiansu.m is to make a musical rhythm to slow down play, the two cases do not change the tone of music.)

说明：  用三层感知器实现数据分类。该感知器无反馈，使用2-2-1结构(Sensor data with a three-tier classification. The sensor without feedback, using the 2-2-1 structure)

用MATLAB实现一种快跳频通信系统毕业论文。Word版(Using MATLAB to achieve a fast frequency hopping communication system thesis. Word version)

mathews数值分析书的源代码，用matlab编写，此是第一章中的程序。(mathews numerical analysis of the book s source code, using matlab, you can control book-learning.)

音频无损压缩程序，加入随机噪声，利用前向预测算出预测误差，再用熵编码，组帧，最后解码(Lossless audio compression program, by adding random noise to the prediction error is calculated using the forward prediction, and then entropy coding, framing, and finally decoding)

模态分析，获得采样数据的固有频率、各阶振型，阻尼比等，(Modal analysis, the natural frequency of the sampling data, each vibration mode damping ratio)

wavelet code in matlab. its representation of reading alphbets

to obtain the scattering width of the TM wave

Distributed Localization in Wireless Ad Hoc

曲柄滑块机构的运动学仿真，研究曲轴运动的物理规律，通过建模和仿真，其运动规律可以实时动画展现，各项数据实时输出，大大增加了直观性(Slider-crank mechanism kinematics simulation, the laws of physics research crankshaft movement, through modeling and simulation, which show the movement of the animation in real-time, real-time output of the data, greatly increasing the intuitiveness)