Matlab

RLGC TRANSMISSION LINE
Hi I am using a simple RLGC transmission line to study the reflections in the line. In the simulink model I have injected an fast rising double exponential pulse from sending end. The other end of the circuit is kept on. I have connected a scope in the sending end. Scope only shows the injected pulse , not showi... 2 Jul 2010 10:10

Mat Files in A Database
Hello, I am trying to store Matlab variables in a database in binary form, then read them back as matlab variables. What is the best way to do this? I know that the load and save functions can read or save mat files (which are binary files of variables) but they create a disk file, I just want the data to be st... 4 Jul 2010 08:59

How to integrate virtual reality window into a guide
Hi Lucas and all, I finally have a demo that I have posted to the Exchange: http://www.mathworks.com/matlabcentral/fileexchange/28006-fly-a-747-with-matlab-multiple-views-in-a-gui-dynamic-lighting Thanks, Saurabh ... 2 Jul 2010 10:10

import 3D models into figures
Hi Chen, One suggestion would be to export your CAD/3D model to VRML which is universally supported by most softwares. Onces you have that in VRML, you can use Simulink 3D Animation's MATLAB API to control the motion of the object inside your MATLAB GUI. I have an example that goes through the GUI building here. ... 2 Jul 2010 10:10

connect Virtual Reality to a GUI
Hi there, I have created a demo for download that does exactly this and more. See this: http://www.mathworks.com/matlabcentral/fileexchange/28006-fly-a-747-with-matlab-multiple-views-in-a-gui-dynamic-lighting Thanks, Saurabh ... 2 Jul 2010 10:10

VRML
Hi Marno, Yes, this is possible. But to plot the envelope, I would recommend using the trajectory tracing functionality that is available as a block introduced in R2008b: Please read about it here: http://www.mathworks.com/access/helpdesk/help/toolbox/sl3d/vrtracer.html If you choose spheres and size them a... 2 Jul 2010 10:10

180 degree conduction mode of an BLDC machine
Hi , This is Ramana Manohar M.Tech student ...... I want to know some thing about the BLDC machine modeling ,sir did u have any idea how to model an DELTA connected BLDC motor in the matlab\simulink. can any one send me the BLDC machine model which you have .The thing is that i am a... 2 Jul 2010 09:05

command "imagesc"
Hi, I am italian...sorry my English language ;) I have a transfer function G (s) = 3b / ((s ^ 2 +2 * s +3) (s +1) (s ^ 2 + s + a * b)) with 0<a<200 and 0<b<200 I must calculate the singular values and then I must set s=sigma1-sigma2+sigma3-sigma4+sigma5. I must use the command "imagesc" to graph results. My proble... 2 Jul 2010 09:05

Estimating costs due to memory allocation in FFT
Hi all I had recently written some code for intensive number crunching. In one of the test runs, I had to call the fft() function ~ 6.4 million times in a nested loop. The number of points of each vector being transformed is usually around 2^14. Now, the net execution time for the statement containing the call to... 23 Jul 2010 03:47

Gaussian Filter
Hello I am using butter worth bandpass filter to the extract the band of frequencies. I also want to extract a single frequency(e.g. 4Hz) from the signal. I am aware that it could be done using gaussian filter. However, I could not find a way to do that. It could be a nice help if you could help me solve this Thank y... 2 Jul 2010 15:44