matlab-help

实验一：三次样条插值（P56，例6） 一、实验目的： 1) 掌握三次样条插值的运用 2) 了解拉格朗日插值在高次上的误差 二、实验环境：Matlab6.5 三、实验内容： 1) 给定函数f(x)=1/(1+x2)，-5<=x<=5，节点xk=-5+k，(k=0,1,2…10)，用三次样条插值求S10(x)，S10’(-5)=f’(-5)，S10’(5)=f’(5)。 2）作原函数f(x)，拉格朗日插值函数Ln(x)，三次样条差值函数Sn(x)。画出三个函数的图像，比较它们的区别。 (Experiment I: cubic spline interpolation (P56, cases of 6) First, the experiment was: 1) cubic spline interpolation to master the use of 2) understanding of Lagrange interpolation in high-error second, experimental environment: Matlab6 .5 c, experimental elements: 1) a given function f (x) = 1/(1+ x2),-5 <= x <= 5, node xk =- 5+ k, (k = 0,1,2 ... 10), using cubic spline interpolation for S10 (x), S10 (-5) = f (-5), S10 (5) = f (5). 2) for the original function f (x), the Lagrange interpolation function Ln (x), cubic spline difference function Sn (x). Draw the three functions of images, compare the difference between them.)

开环和闭环MIMO信道容量仿真程序，用于计算和比较闭环系统和开环系统的信道遍历容量，采用注水算法。(Open-loop and closed-loop MIMO channel capacity simulation program, the channel used to calculate and compare the closed-loop system and open-loop system is ergodic capacity, the use of water-filling algorithm.)

计算PSNR。可直接调用，两个输入参数im1,im2为两个图象序列，返回值为PSNR的值。(Calculation of PSNR. Can be called directly, two input parameters im1, im2 two image sequences, the return value is the PSNR.)

Graphical demonstration of eigenvalues and singular values

经典书籍-数字图像处理-冈萨雷斯-3。解决各位敲代码的烦恼！These MATLAB functions were created for the book Digital Image Processing Using MATLAB (DIPUM), by R.C. Gonzalez, R.E. Woods, and S.L. Eddins, Prentice Ha(Classic books- digital image processing- Gonzalez-3. To resolve the trouble code you knock! These MATLAB functions were created for the book Digital ImageProcessing Using MATLAB (DIPUM), by RC Gonzalez, RE Woods, andS.L. Eddins, Prentice Ha)

测试成功的局部均值分解算法，可应用在故障诊断中(The test successful local mean decomposition algorithm，can be used in fault diagnosis)

matlab线性代数的相关技术，适合初学者学习(matlab linear algebra related technologies, suitable for beginners to learn)

请大家看着办啊(please size up situation and act accordingly ah?)

此为一典型的比例电磁阀的simulink模型，可供广大网友参考(This is a typical simulink model proportional solenoid valve, for the majority of users reference)

时间域有限差分法（TD-FDM）源代码，用于计算任意传输线问题，最后与理论解比较。进一步说明见程序文件timeUpdt.m(Time domain finite difference method (TD-FDM) source code, used to calculate the arbitrary transmission line problems, and finally compared with the theoretical solution. Further details see the program file timeUpdt.m)