wind_dirct_drive_

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)

数字信号处理教程——MATLAB释义与实现程序集(Digital signal processing tutorial- MATLAB interpretation and implementation of assembly)

说明：  Matlab在通信仿真中的应用，课件，例题，练习(Matlab simulation applications in communications, courseware, examples, exercises)

this is a code for pca based face recoqnition ,nurl based programming .

为感谢惠俊英老师的谆谆教诲，特为好奇诸君奉上水声物理--海洋传播声场模拟的一份武林秘籍！ 当好奇诸君阅毕此卷，再对照轻松跑完六份作业（六路招式），即入“水声物理”之江湖！ BELLHOP与AcousticsToolbox遵照GNU公共许可证进行分发。感谢Michael B. Porter对BELLHOP的原创，也感谢Orlando Camargo Rodríguez此份大道至简的入门秘籍。更感谢由Free Software凝聚起来的自由科学家社区。(Bellhop is a highly efficient ray tracing program, written in Fortran by Michael Porter as part of the Acoustic Toolbox (available at the website of the Ocean Acoustic Library). Bellhop is designed in order to perform two-dimensional acoustic ray tracing for a given sound speed profile c(z) or a given sound speed field c(r; z), in ocean waveguides with flat or variable absorbing boundaries. Output options include ray coordinates, travel time, amplitude, eigenrays, acoustic pressure or transmission loss (either coherent, incoherent or semi-coherent).)

在MATLAB提供的距离变换函数的基础上，对二值BMP图像进行不同距离度量的距离变换，并给出变换效果。程序已经在MATLAB6.5上运行通过。(Provided in MATLAB distance transform function based on the binary BMP images of different distance measure of distance transform, and gives the effect of transformation. Procedures have been adopted in MATLAB6.5 run.)

signal detection using qrdm for 4x4 system

说明：  高斯白噪声的生成程序，是我做毕设时编的。大家可以参考！(Gaussian white noise generation process is complete for me to do when the series. Members can refer to!)

matlab code for pv battery converter

智能天线代码，适合于学习用matlab对天线进行建模仿真，matlab可以实现对天线结构的复杂设计，尤其结合hfss功能更强大(the matlab code for antenna design)