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Polar-Fourier-Transform
基于MATLAB实现了极坐标下的傅里叶变换,对一个给定 n×n 的二维信号,其计算复杂度等价于笛卡尔坐标下的2D-FFT,可广泛应用于图像处理和分析。(A fast high accuracy Polar FFT algorithm is given in the software package written in MATLAB. For a given 2D signal of size n×n, the algorihtm s complexity is just like in a Cartesian 2D-FFT, which can be used widely in image processing and analysis.)
- 2021-01-07 15:28:53下载
- 积分:1
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matlab_FEM_dismesh
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)
- 2010-06-05 09:17:55下载
- 积分:1
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AudioPlayer
It is GUI file, that permit play audio in WAV format
- 2009-04-09 09:47:25下载
- 积分:1
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simulink
学习simulink仿真的基础材料,适合初学者学习(Simulink simulation based learning materials, suitable for beginners to learn)
- 2013-10-12 10:52:44下载
- 积分:1
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robot-Iterative-learning-control
该程序是由matlab编写的,可实现机器人的迭代学习控制的仿真分析。(The program is written by matlab, enabling simulation of iterative learning control of robot.)
- 2015-03-18 17:53:19下载
- 积分:1
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22222
几张图像,用我的代码,经过matlab程序,制作成简单的动画。。。(Several images, using my code, after matlab program, made into a simple animation. . .)
- 2013-05-27 00:25:20下载
- 积分:1
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CarrierRecovery
Carrier Recovery Using a Second Order Costas Loop
- 2009-03-25 14:59:39下载
- 积分:1
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Modeling-attention
视觉注意力重要文献,基于该文献Dirk Walthera等人编制了可以在MATLAB环境下运行的图像显著区提取工具(Modeling attention to salient proto-objects)
- 2012-08-21 13:35:09下载
- 积分:1
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normfreq
clear 从内存中清除变量和函数
exit 关闭MATLAB
load 从磁盘中调入数据变量
pack 合并工作内存中的碎块
quit 退出MATLAB
save 把内存变量存入磁盘
who 列出工作内存中的变量名
whos 列出工作内存中的变量细节
workspace 工作内存浏览器
(There is one outlier in the data of , but is not of data .For and the line of Q2 is in the middle of the box, so there are not asymmetries for both and .)
- 2011-06-20 17:01:22下载
- 积分:1
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shibbsR
将基于最大峰值和JADE盲分离算法相结合的一种盲分离算法.(Will be based on the maximum peak and the JADE algorithm for blind separation of a combination of blind source separation algorithm.)
- 2007-11-29 11:16:13下载
- 积分:1