FEM-MATLAB

WAITINPUT Prompt for user input, but no longer than t seconds

这是一本很好的学习信号处理的书籍,拿出来和大家分享(This is a good learning signal processing books, and share out)

设计一个切比雪夫滤波器，要求通带截止频率 ，通带最大衰减 ，阻带截止频率 ，阻带最小衰减 。要求绘出滤波器的幅频特性曲线。(Design a Chebyshev filter, the passband cutoff frequency required, the maximum passband attenuation, stopband cutoff frequency, stopband minimum attenuation. Requirements of the filter amplitude-frequency characteristic plotted curve.)

DistMesh giving a singular FEM matrix?(Hi Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D: rho_1 < rho < rho_2 where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition. Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used: Circle with hole rABC=1.5 rCyl=0.5 fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl) fd=inline(fdstring, p ) box=[-2,-2 2,2] [p,N]=distmesh2d(fd,@huniform,0.04,box,[]) I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)

114个数字图像处理MATLAB实验程序(114_image_processing_programs_by_MATLAB)

Matlab辅助激光光学分析与应用 内涵源码(Matlab assisted laser optical analysis and Application)

qpsk调制 信道仿真 采用蒙特卡洛 信号和噪声随机生成，莱斯信道(qpsk modulation and channel simulation using Monte Carlo signal and noise randomly generated, Rice channel)

Shows single- and two-stage-decomposition of a sample image, as well as reconstructed branches. The reconstruction error is shown. Also demonstrates that better compression can often be obtained if different thresholds are allowed for different subbands.

自己写的模糊PID的simulink文件(simulink fuzzy PID)

matlab与PSPICE的数据通信接口技术(matlab and pspice data coummunication)