Practica-4

本代码对深沟球滚动轴承的滚动体做了深刻的研究，并进行了仿真分析，里面的数据来自于美国西储大学。(The rolling bearings of deep groove ball rolling, the code has made a profound study, and simulation analysis, which the data from the Case Western Reserve University in the United States.)

This code is used for trajectory tracking using Kalman filter.

比例导引弹道仿真，目标方向速度可变，非插值法，xy面投影，xz面投影均遵循比例导引，合成后构成三维图形。(Proportional navigation trajectory simulation, variable speed target direction, non-interpolation method, the xy plane projection, the xz surface projection are follow the proportional navigation guidance, synthetic After a three-dimensional graphics.)

u"+u=sinx, 0<x<1 u(0)=0, u(1)=0

自抗扰控制器源代码,本系统由两个部分组成，分别是观测器，微分器((adrc) source code，This system consists of two parts, respectively is the observer, differentiator yards)

matlab实现用双线性插值法放大和缩小图像(Zooming and Shrinking Images by Bilinear Interpolation (a) Write a computer program capable of zooming and shrinking an image by bilinear interpolation. The input to your program is the desired size of the resulting image in the horizontal and vertical direction. You may ignore aliasing effects. (b) Download Fig. 2.19(a) and use your program to shrink this image 1024 x 1024 to 256 x 256 pixels. (c) Use your program to zoom the image in (b) back to 1024 x 1024. Explain the reasons for their differences. )

说明：  线性调频信号匹配滤波器的设计与实现，详细(LFM matched filter design and implementation details)

说明：  用MATLAB实现的不合格品率P控制图的绘制，只要将数据导入data.txt文件，然后在MATLAB中运行main.m文件即可打开绘图界面。（注意：路径要设置好）(the failure rate of P Commodities Control Map, as long as the data into data.txt documents, then in MATLAB run main.m document can be open graphics interface. (Note : To set a good path))

无刷直流电机混沌吸引子，q、d轴电流与电机转子相位图(Brushless DC motor chaotic attractors, q, d-axis current and the motor rotor phase diagram)

合成地震记录源程序，很适合初学者学习，便于掌握(Synthetic seismograms source, it is suitable for beginners to learn, easy to grasp)