precodingadetecting

求解接触刚度，用经典的Hertz方法求解理想情况下 刚度随载荷变化的关系(contact stiffness)

这段程序是关于图像分析中的各种颜色处理的，感兴趣的同学可以看看(This program is all about the color of the image analysis processing, interested students can look)

Converts a pointcloud (unordered vertices) to a mesh of triangles by connecting the nearest 3 points and calculates the normal of each vertex and triangle. Also finds the neighboring triangles of each vertex and the neighboring triangles of each triangle

说明：  瑞利衰落信道中空时编码仿真程序： 1.2根发射天线、1根接收天线2.最高信噪比为12dB，即仿真范围为0dB到12dB3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真4.每一帧数据为24个QPSK符号(Rayleigh Fading Channels Space-Time Coding Simulation Program: 1.2 transmission antennas, a receiving antenna 2. The highest SNR 12dB, that is, simulation range of 0dB to 12dB3. In each signal to noise ratio conditions, the number of symbol error over 20 that is, to stop the signal to noise ratio under the conditions of simulation 4. each frame 24 QPSK data symbols)

说明：  阵列信号处理的基本doa算法，matlab下运行，非常有用(Array signal processing basic doa algorithm, matlab running, very useful)

This is the description file for the matlab .m file with the same name wlstotal in spanish language.

FDTD for Wave equation3

这个文件是关于数学模型的，这个文件对于学习自动控制课程同学是很有用的。(This file is on the mathematical model, the file for the automatic control course students learn is useful.)

基于S函数编写了自抗扰控制器中的跟踪微分器（TD）,扩张状态观测器（ESO）,非线性反馈（NLSEF），并在Simulink环境下搭建ADRC，完成对方波的跟踪，简单好用(S function based on written ADRC in tracking differentiator (TD), extended state observer (ESO), non-linear feedback (NLSEF), and built ADRC in the Simulink environment, complete track the other waves, simple and easy use)

对一副M*N大小的图像重复使用截频为D0的高斯低通滤波器进行滤波。假设K为滤波次数。并从理论上说明当K足够大时的滤波结果及产生原因(Right an M* N size of the image is repeated using the cutoff frequency for the D0 of a Gaussian low-pass filter for filtering. Assuming K is filtering times. And filtering results when K is large enough and theoretically causes)