Matlab

polyline feature extraction from satellite images
polyline feature extraction from satellite images ... 25 May 2010 14:38

Time Shift and Z Transform
I am trying to verify the Z transform in MATLAB via the timeshift property. For more information on the Z transform see http://en.wikipedia.org/wiki/Z-transform Does anyone know why my code does not work as I would expect/how I can modify it properly. The Goal is to recover f after taking the z transform of the s... 25 May 2010 17:57

FromWorkspace and sampling time
hi i am passing data to a simulink model from a matlab via the 'from workspace' block Fs = 250000; Ts = 1./Fs; NrOfFrames = 4 NrSamples = 65536-1; opts = simset ( 'Solver', 'ode5', 'RelTol', 1e-3,'FixedStep', 1./ (Fs) ); for fr=1:NrOfFrames fr InBits=1 Mod=3 sim('ofdm', 1/Fs, opts); ... 25 May 2010 13:31

short pause
Is there some way to pause for a millisecond or less? The pause(n) function only allows for a pause of 0.01s. I am sending data to a piece of hardware and need it to be sent at a variable frequency between 100Hz and 250Hz. This calls for a pulse width of 2ms to 5ms, so I need to be able to pause for this long at the... 25 May 2010 13:31

Size of class instance in memory
Hello! I'm looking for a way for a way of determining the size of a matlab class instance, but can't seem to come up with anything. That is, I have a handle class that contains some properties and I'd like to be able to see the total amount of memory allocated to hold an instance of this class (including all the mem... 25 May 2010 17:57

Creating static libs to use in mex
Hi! I want to build a static library (.lib) with some subroutines to be used by my s-function. As a simple test, this library (let's call it mylib) only contains a subroutine (let's call it subrout) that sums its two inputs and outputs the solution. This library was built with Microsoft Visual Studio 2005 Profess... 26 May 2010 04:49

how to create a video from frames?!
hi everyone, i was working on a project where i want to take some images and make video out of them. I have 5 images and i want to combine them into a video '.avi' file...i've tried the following code but it brings up an error saying "Indexed movie frame must have a non-empty colormap" at the "im2frame" part where t... 25 May 2010 12:25

minimum stationary points
Hi From a graph with min and max points already plotted, is it possible to work backwards and find a point the lowest point before the firsat maximum and the same for the last maximum but looking forwards!??? Helena G ... 25 May 2010 13:31

Convert signed integer to a 16-bit hex number
I know there must be an easy way to do this, but I'm new to matlab and have not been able to figure it out and have tried searching for a solution without luck. I need to convert a signed integer to a 16-bit sign-extended (2's complement) hex number for output to a file. For example: 3 -> 0003 -3 -> FFFD I... 25 May 2010 12:25

Convert signed integer to a 16-bit hex number
I know there must be an easy way to do this, but I'm new to matlab and have not been able to figure it out and have tried searching for a solution without luck. I need to convert a signed integer to a 16-bit sign-extended (2's complement) hex number for output to a file. For example: 3 -> 0003 -3 -> FFFD I... 25 May 2010 12:25