Matlab

Simulink PLL
I am new to matlab and simulink. I need to simulate a PLL in simulink. I have constructed the PLL with different components - multiplier, filter and the VCO. The input to the multiplier is a sine wave. The VCO output is discretised by a zero order hold and then the FFT scope was added to view the ouput. I am not ab... 4 Jul 2010 23:09

solving a function with serveral known variables
Hi, For the following equation y = N/alphadot + (N*(gamma/nu)^alphadot)*log(gamma/nu)/(1-(gamma/nu)^alphadot) - sumA where N, gamma, nu, and sumA are all known variables, I am trying to find the zero of the function for the unknown variable alphadot. This seems like it should be pretty simple to me, but I can... 11 Jul 2010 18:11

frequency axis basic
Hi! This must be a stupid question ! In signal analysis i have seen few paper where they talk in terms of omega (radian) instead of Hz They take a signal in time domain and plot its spectra in frequency domain between [-pi,pi] How can i do the same in matlab Assuming N=1000; f=30; dt=.01; t=0:dt*(N-1) ... 7 Jul 2010 00:25

Help with a plot
Hello i would like to make a plot like the one in the picture below. http://i49.tinypic.com/e0hdo7.png My problem is how to create the highlight area between the range 1+/-0.003. I would appreciate any help. ... 4 Jul 2010 20:59

Very Slow GUI in 64-bit Ubuntu linux
I have just performed a fresh install of Ubuntu Lucid 10.04 (for amd64) and Matlab 2010a on my machine and I can confirm that the matlab GUI is obnoxiously slow. It is close to impossible to use the array editor and every little task is incredibly sluggish. In particular, it takes a couple of seconds to switch the curs... 9 Jul 2010 12:45

Optimization of Pipe Systems
Hello Everyone, I need to minimize a function that computes the cost of a pipeline system based on the diameters of pipes. cost=cost(D1,D2,D3,...,Dn) Every Diameter, D, can take one of these values and no other ones: 0.5 0.75 1 1.25 1.5 2 2.5 3 4 What type of optimization should I use? Discrete ... 5 Jul 2010 18:52

bar location
Hi all, I have a grouped bar group, for example, data = rand(3,4).*10; bar(data) I want to annotate the first bar in each group, then the second, and so on. I am wondering if there is a way that I can get the x location of each bar. Thank you in advance, Wendy ... 4 Jul 2010 17:44

Digital Signal and Image Processing using MATLAB®
I need the solutions of this book, anyone who could help me? Thank you very much ... 4 Jul 2010 16:39

cannot drag&drop into editor
Hi, someone seen this? Not a novice user. Have been using fine for a while. Suddenly I cannot drag&drop files into the editor. Just get the circle\slash thing & will not drop. Really annoying to have to .... edit longFilename or edit longPathName\longFilename if not pathed. I tried run as admin & such, seems to hav... 4 Jul 2010 16:39

Need help in Genetic Algorithm
Hi, I am having a problem minimization problem in Genetic Algorithm. Suppose I have two variables, one is the rows of Barrel (Nrows) and number of barrel in each row (NB); However, the NB is related to Nrows; see, like if I have only 5 Nrows (one input), the NB will have 5 numbers which corresponds to each row (5 ... 6 Jul 2010 07:52