Matlab

PSD and Correlation
Hello, I am generating a random process by passing white noise throught a second order system. a/(s^2+2*z*wn*s+wn^2) The autocorrelation function calculated using xcorr gives me what I expected, but the psd (calculated using fft) does not. I expected to see a decreasing line with slope -4 (loglog-Plot) If I increa... 12 Aug 2010 07:06

Problem executing MEX file
Hello, I've a MEX file which uses an external C++ lib (QuantLib) and to me it looks like work well for some type of functions but for someother it crashes me MATLAB system. I really dont understand why because the way on which I use the function into my MEX file is exactly the same I use it in another simple C++ proj... 12 Aug 2010 09:16

Wi Fi
I want to transfer a file from my PC to wifi device so that i can access remotely by other PC or laptop by using usb wifi device. Is it possible to send a file via matlab? Is there any such protocol which help to do this? ... 12 Aug 2010 13:39

standalone applications
hi, I've complied a standalone executable file, and it runs perfect on computers with matlab. Is there any way I can run it on computers without it, 'cause Matlab complier weighs, like, 195Mbs, which is not something anyone can afford to download. thanks for the help Alex ... 12 Aug 2010 08:11

Working with timers in GUIDE - An solution and explanation
MATLAB documentation don't address question how to work with timers in GUIDE in a proper way. As I saw, many users have this problem. Timers in GUIDE are important component if we want to design or simulate real time processess. Here is an solution, if you have better idea pleas respond to this messsage......... Her... 12 Aug 2010 11:28

''Keep'' command showing an error
Hallo, till yesterday, the command ''Keep'' was working fine but today when I tried to execute my script containing the following command I got an error: Keep xx yy directory name1 % command Error message: Undefined function or method 'keep' for input arguments of type 'char' Why is that so? did I change ... 12 Aug 2010 10:22

memory allocation issue
hi, i have a mex file including the following code. ************* #include "mex.h" #include "stdio.h" void build_arr(double* x, double* supp,int N, int K, int C) { // Cost Array double ***cost; cost = new double** [N]; for( int i=0; i<N; i++ ) { cost[i] = new double* [K+1]; for(... 12 Aug 2010 06:01

enhancement
hi all, pz tell me how to calculate zcr and energy for v/uv classification ... 12 Aug 2010 13:39

enhancement
hi all, pz tell me how to calculate energy and zcr for v/uv classification.. ... 12 Aug 2010 04:56

subsctract two column vectors without for loop
Hello everyone, if I have two column vector for example gm=[1:1:100]'; g=[1:1:21]'; Could someone please show me how can I subtract each row in gm by each row in g, so I can get a new matrix with size 100x21 without using a for loop. Regards ... 12 Aug 2010 11:28