Matlab

A bug in avifile?
Hi, Why can't I create an AVI file using "avifile" with the name "sigma1.avi", while "sigma.avi" and "tt1.avi" work? mov = avifile( 'sigma1.avi', 'quality', 100, 'compression', 'MSVC' ) ??? Failed to open file. Error in ==> avifile.avifile at 163 aviobj.FileHandle = avi('open',filename); Thanks Chris ... 29 Aug 2006 15:31

wavelet
hello! i am currently working on wavelet analysis.i need to normalize a wavelet.i have seen in a book that the method is to divide the wavelet by dividing the square root of the total wavelet variance. the problem is when i do the matlab code of this it is showing the following: >> var(1,psi_daughter) Warning: ... 22 Aug 2006 13:04

QPSK modem simulation
There is no longer any MATLAB documentation on the "ddemodce" function, but my guess is that it includes an integrate and dump type demod. This means that if you give it 4 samples per symbol, it will take the average location of all the samples of that symbol and make a symbol decision. Since the simulation has p... 15 Aug 2006 23:20

a question about matrix
when i run a programme ,the system put out the following warning: Index exceeds matrix dimensions. Warning: Failed in BitBlt, device does not support this operation (gle00000006) can someone tell me how to solve this? thank you first! ... 15 Aug 2006 14:47

exiting a loop from user input
Is there a way to run a while loop that will go on indefinitely until a user input (keyboard command) tells it to stop? I can start the while loop with a user command but I can't figure out how to stop it and go on to the next part of the program. command = input('[Enter] to run, [Q] to quit: '); r=1; while ise... 10 Aug 2006 12:06

MSK BER simulation
I have the question. I need to test BER of my coherent correlative type GMSK detector. But to simplify understanding I first need to consider my detector for detection of MSK signal which I get as output of my GMSk modulator with BT=infinity( say 10000). I use coherent orthogonal FSK type detector, so I know I lose... 5 Aug 2006 12:55

mex a c++ code,with error LNK2001
hi, I mex a c++ code,and then errors produce nafxcw.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argv nafxcw.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argc nafxcw.lib(filelist.obj) : error LNK2001: unresolved external symbol __mbctype nafxcw.lib(timecore.obj) : er... 5 Aug 2006 11:52

need help: simulating BER versus speed in ofdm
http://www.rdfwt.com/showthread.php?p=1618#post1618 ... 4 Aug 2006 18:29

Could not create movie frame
Hi, all, I got an error from the following program, what's wrong with it? mov=avifile('flipflop'); axis tight; set(gca,'nextplot','replacechildren'); for j = 1:1000 plot(Z(j,1),Z(j,2),'ro','MarkerSize',10); F(j) = getframe; end movie(F); % error here mov=addframe(mov,F); mov=close(mov); Another... 2 Aug 2006 22:09

quit problem
>> which quit built-in (D:\MATLAB_r14sp3\toolbox\matlab\general\quit) quit ??? Error using ==> quit Duplicate path name udd_COM specified, cannot construct path. Have I bust my installation or something?? ... 2 Aug 2006 10:54