Matlab

BPSK and GMSK modulation with Middleton Class A noise model
I am trying to run my simulation for BPSK and GMSK using Middleton Class A noise model.............................In this case the bit error rate is too high (50%) which isnt good for a communication system.................I have added a find delay block to calculate the delay and the delay value is not stable........... 4 Dec 2009 17:23

Garbled zlabel
I'm plotting some 3d data using surf, and the z axis label comes out completely garbled. If I rotate the axis by 90 degrees to make it horizontal, it appears correctly (but I need it to be vertical, not horizontal). I'm using the LaTeX interpreter, but something similar happens when using the default interpreter. ... 4 Dec 2009 15:08

resize array
"Young Ryu" <ryuyr77(a)gmail.com> wrote in message <hfbl9m$pv1$1(a)fred.mathworks.com>... Here's a function for downsampling, but it works only when the new pixel sizes are integer multiples of the old ones. If this is enough for you, it might be faster than resizem, if the latter is trying to do something interpolatio... 4 Dec 2009 15:08

drawnow slow in animation
Hi, I am trying to animate a set of tracked coordinates (NOT in real time). Say, my input file has a million coordinates and I want to show them as moving (or progressing) in time in a 2D plot. The code I am using now, based on an example from the Matlab documentation follows: ----------------------------- fra... 4 Dec 2009 15:08

resize array
Hi I have an array: A=rand(1200, 1200); I'd like to resize this array by half size. I found the resizem function and it works: B=resizem(A, 0.5); However, I felt this function is quite slow. I guess that there might be a faster function to do this. Could you help me? Thanks! ... 4 Dec 2009 15:08

Optimization of Location Allocation
Hello everybody, I've been trying to optimize the problem below. I couldn't figure out how to implement cost function to Matlab. Could anybody assist me doing this? Thanks function TotalCost = costfunction(x) % Customer locations j = 1..N, c(:,j) c = [1 1; 2 2; 2 3; 3 3; 4 5; 5 6]'; % Total trips for cus... 6 Dec 2009 05:13

Matrix Multiply faster than MATLAB, ATTN: Jan Simon
Jan, I wonder if you could do me a favor and test some C-mex code with your Borland C compiler. I wrote some matrix multiply code and posted it to the FEX. It can be found here: http://www.mathworks.com/matlabcentral/fileexchange/25977-mtimesx-fast-matrix-multiply-with-multi-dimensional-support For general matri... 7 Dec 2009 19:35

Moving Minimum/Max?
Hi, first of all, I have matlab R2009b. I am trying to intemperate data for a college project. (Multilpe 70,000 line peaces) It is from a "satellite" that was launched to 30KM on a weather balloon. The data is from solar panels, one of which overloaded the ADC on the micro-controller we were using because of a huge... 5 Dec 2009 04:15

Curve fit warning msg
Hi Everyone, I have a large array ( say 500 by 100) containg experimental data ( each column representing a dataset. I have been programmatically fitting each dataset with a theoretically predicted function , using curve fitting tool box. For few of the 100 datasets, fit gives the following warning "MaxFunEval... 7 Dec 2009 16:14

edge detection for ct images
which edge detector is the best for ct images,,,? handling medical images is of crucial concern... so please suggest me a good one ... 4 Dec 2009 11:45