Hello   I have written m-file which gives me a 1023 random bits which i get in Matlab workspace . I want to generate a...

Hello   I have written m-file which gives me a 1023 random bits which i get in Matlab workspace . I want to generate a signal out from that (consisting of pulse) , the time between each pulse should be 0.9775 micro second and after that i also want to see that signal in Mat

Abdulkadir, Nope I do not have any code for markov random fields. I am forwarding this email to Matlab group may be someone...

Abdulkadir, Nope I do not have any code for markov random fields. I am forwarding this email to Matlab group may be someone from there mite be able to help you Hope this helps Tarang On Tue, 22 Mar 2005 03:18:14 -0800 (PST), abdulkadir s

Hi all, I am working on some data of random points, & than I generate required curves using those data & now I need to export those...

Hi all, I am working on some data of random points, & than I generate required curves using those data & now I need to export those cuvres in the curve format to translate it into CAD modeler. My question is can I export curves in iges, step, dxf or any such similar format. regards, Sohaib.

I am using Matlab 7.0 plus most of the toolboxes. I have some experiemtally obtained transfer funtions of a previous experiement. This...

I am using Matlab 7.0 plus most of the toolboxes. I have some experiemtally obtained transfer funtions of a previous experiement. This experiment imparts a random vibration on one location on a structure and senses acceleration at another location. I would like to extract the modal residues, damping ratios and natural frequencies from these experimental transfer

Hi all!! I implemented in Matlab some different ZF equalizations, but I should change the input signal froma random [+1/-1] signal to a QPSK...

Hi all!! I implemented in Matlab some different ZF equalizations, but I should change the input signal froma random [+1/-1] signal to a QPSK or BPSK signal (choosing number of samples, oversampling and so on..), but I have no idea of how doing it. Could anyone give me some advices or some code-examples? Thank you all in advance, Ella PS:here there

I want to plot Complementary Cumulative DIstribution Function(CCDF) of a random variable. There is a command to plot only Cumulative...

I want to plot Complementary Cumulative DIstribution Function(CCDF) of a random variable. There is a command to plot only Cumulative Distributive Function(CDF)-"cdfplot". How to get the CCDF plot? I thought of one way. First get the points from the CDF plot. then subtract them from 1(because CCDF = 1 - CDF). But I dont know how to get the points from a plot. Can

Dear All, I am really strugling to write a nice program giving me the curve of the PSD of a random data. If I use the FFT function I will...

Dear All, I am really strugling to write a nice program giving me the curve of the PSD of a random data. If I use the FFT function I will get a descreat representation and not smooth and continues like I found in some publication. Could any one help me with some matlab code to plot a continues PSD. Thanks very much regards

I am using an AR model to estimate a noise sequency, I should be able to simulate a longer sequency of the noise. I have tried to use ...

I am using an AR model to estimate a noise sequency, I should be able to simulate a longer sequency of the noise. I have tried to use predict command, but the sequency looks different. I have also tried too use a long random noise sequency and used that with the model, but then frequencies don't match. Is there any methhod I could solve this problem,

Dear All, In my work I am using MATLAB function RANDN to generate zero mean and variance 1 random numbers. I know the PDF for this is...

Dear All, In my work I am using MATLAB function RANDN to generate zero mean and variance 1 random numbers. I know the PDF for this is Gaussian which is well defined in literature and I can find loads of information on it. But in my work I happened to get four different Gaussian numbers multiplied together i.e.: a4 = a*a*a*a (where a is a Complex Gaussian number) I am interested in anal

Hi all, i m not clear about AWGN channel . most paper and book consider that channel is Gaussian and it has zero mean and N0/2 noise...

Hi all, i m not clear about AWGN channel . most paper and book consider that channel is Gaussian and it has zero mean and N0/2 noise spectral desnsity for eatch side. i just clear channel is random it has normal valriable(zero mean) and noise what is the meaning of two sided spectral density is it transmitter side as well as receiver side noise level. What is the relation between

Hi everybody, First I like to appologize because my question is some how stupid, since I am mechanical engineer student and new in signal...

Hi everybody, First I like to appologize because my question is some how stupid, since I am mechanical engineer student and new in signal processing, I need to generate a random signal with a desired PSD, I found that this problem was asked before by Tony and Nandan gave him the answer. What Nandan said was to generate a white signal (uniform PSD) and then pass it through a filter whose f

I want to model a noise source with matlab. the spectrum should have an offset of 5 uV and a white distribution. I tried...

I want to model a noise source with matlab. the spectrum should have an offset of 5 uV and a white distribution. I tried so: mean=0; stddev=0.3; white = random('norm', mean, stddev, 1, 4096); % units [volts] and the spectrum: WN=fft(white)/4096; how can I add the 5uV offset to the spectrum in the time domain?

Using Hanning window. I want to plot the Magnitude_Frequency figure. Which command should I use? Thanks! =20 =20

Using Hanning window. I want to plot the Magnitude_Frequency figure. Which command should I use? Thanks! =20 =20

hi all, i am working on image compression, i have encountered a problem while implementing mrf for image segmentation. Could anyone of u...

hi all, i am working on image compression, i have encountered a problem while implementing mrf for image segmentation. Could anyone of u help me by suggesting any link or code source for image segmentation using Markov Random Fields. Please help me. Thanks in advance sonali

Hello all, I am new to MATLAB and even newer to signal processing. I am doing some work on Time delay estimation. I have a few questions which...

Hello all, I am new to MATLAB and even newer to signal processing. I am doing some work on Time delay estimation. I have a few questions which I hope some of you would be able to help me with, As of now I am experimenting with random signals generated by a signal analyser. I have been told that the cross correlation is not feasible when applied to periodic signals ( e.g sine waves). Is t...

Hi there! Question pls... whats the meaning of randn(51,1)? what if I reverse it to randn(1,51)? Thanks to all!

Hi there! Question pls... whats the meaning of randn(51,1)? what if I reverse it to randn(1,51)? Thanks to all!

Hello, I have a question regarding the wavelet decomposition and reconstruction using the functions wavedec and waverec. I get an error during...

Hello, I have a question regarding the wavelet decomposition and reconstruction using the functions wavedec and waverec. I get an error during the reconstruction process when I set the dwtmode option to 'per'. The code I use is as follows: ----------------------------------- dwtmode('per') x = random('unif', 0, 1, 512, 1); [y, L] = wavedec(x, 9, 'db2'); x_rec = waverec(y, L, 'db2'); ---...

Hello! I have to generate two random sequences of fixed length (k). One with a rice distribution and the other with nakagami distribution( with...

Hello! I have to generate two random sequences of fixed length (k). One with a rice distribution and the other with nakagami distribution( with characteristic parameter m). I've found in literature that a rice distribution can be obtained as the square root of the sum of squares of 2 independent gaussian variate (one with non zero mean). So I suppose I can generate it in Matlab with ,for exampl...

ok let me try this one. suppose u want to choose the key based on the day and last 2 digits of some of your favorite people. assuming that the...

ok let me try this one. suppose u want to choose the key based on the day and last 2 digits of some of your favorite people. assuming that the matrix supports this key system in terms of dimensions. try this for a 256 X 256 image image_X = rand(256); % generating any random image of size 256 X 256 key = [randint(256,1,[1,31]), randint(256,1,[1,99])]; watermark_indices...

Hi, I am currently working on "Video Transmission over Hiperlan" as my final year MSc Dissertation. I tried to learn the demo of hiperlan in...

Hi, I am currently working on "Video Transmission over Hiperlan" as my final year MSc Dissertation. I tried to learn the demo of hiperlan in matlab and i simulated it as well. I am a new user of Matlab and at very begining stage. In this demo the first bolck that is called "Bernuli" is only generating a random binary number and upto my reasearch to transimit video , i would need to re...