Matlab

transfer function derivative differentiation
Hi i have this transfer function G(j*omg) and i need to evaluate the sensitivity function S of it with respect to certain parameters theta_i : S(omg)= abs ( d|G(j*omg)| / dtheta_i ) How can i differentiate my transfer function with respect to parameters? Thanks Davide ... 22 Jun 2010 09:21

problem when writing in excel from Matlab
Hi guys, I am a starter in Matlab and I have faced a small problem. I want to write the program so that some variable values can be writen into excel. eg. (A=12, B=14,C=15...) However, since this program will be run many times and update each of the variables into excel. So Everytime, I need to writen in a new row... 22 Jun 2010 05:00

How identify the type of a plot object?
Hi, I am wondering if there is a way to identify the type of an unknown plot object. I.e. given a graphics object handle, can I find out whether the object is a barseries object or a lineseries object etc.? get(object_handle,'Type') helps a little: it returns "line" for lineseries objects. But "hggroup" for barse... 22 Jun 2010 05:00

FFT analysis
Hello Sir/Mam, Can you please guide me how to use Powergui block/FFT analysis to carry out THD analysis in simulink. If i click FFT analysis it always appears empty. How should i give the structure field and other parameters? With thanks in advance josy ... 22 Jun 2010 05:00

Using strread with textscan
I'm trying to read a .txt file on the format: 01.01.2005 00:00 23.6 25.7 etc. So I'm using fid = fopen('filename.txt','r') C = textscan(fid, '%s %f %f') numbers = [C{2}' C{3}']; date = C{1}'; fclose(fid); Now I want to extract the day, month and year, from the string "date", so I use [day, month, ye... 23 Jun 2010 12:50

Cleaning up Text
Hi, I am working on a project to clean up a scanned image of a logbook. I have managed to clean most of the image but am facing a major problem. The problem is to remove the dark lines on which text has been printed without removing the text. In certain cases the text is printed just on top of the line and i have to ex... 22 Jun 2010 11:34

'sobel' or 'dwt alone' for edge detection?
how to use dwt for efficient edge detection?according to texts,dwt is supposed to be more accurate but i find sobel a better method. -praveen ... 22 Jun 2010 02:51

importing verilog code to simulink
is there any way that i import a verilog code to a simulink block and use that block as a subsytem???? for example, i have written code for FIFO in verilog and i want to import that code to a block in simulink and then in simulation, that block acts as a FIFO block. if any one knows, kindly reply kind re... 22 Jun 2010 02:51

Folder name list
Hello, I have a simple question but I can't find any answer from hear and Google. I want have a list of names of sub folders in current folder. How can I do? Johnny ... 22 Jun 2010 05:00

Compiling Toolbox Material
Probably a stupid question but can't see it documented anywhere... Let me set the scenario: I am running MATLAB on one machine with a licence for the Image Processing Toolbox. A coworker is running MATLAB on another machine with a licence for the MATLAB Compiler. The problem: I wish to compile my program wh... 23 Jun 2010 19:31