Hello I have made a program in matlab that can demodulate an OQPSK-modulated signal with noise (additive white gaussian noise). The carrier...

Hello I have made a program in matlab that can demodulate an OQPSK-modulated signal with noise (additive white gaussian noise). The carrier is phase-shifted with an arbitrary constant between 0 and 2*pi. Here is what I do to demodulate the signal: When the signal is received at time t=0 I know the following will happen for the first T seconds: 1) If there is no or little noise and t...

Guys: New to DSP, interested in learning MATLAB Programming for DSP Block, can somebody give me a hint, where can I head start?. Any links...

Guys: New to DSP, interested in learning MATLAB Programming for DSP Block, can somebody give me a hint, where can I head start?. Any links for some tutorial/software appreciated. Does any "C" programming experience will help?. Also how about INTEL/MOTOROLA assembly programming experience?. Thanks in advance.

I have a set of random data that was generated by sampling the noise. Right now I am plotting the PSD of the noise in dB. How do I plot it with...

I have a set of random data that was generated by sampling the noise. Right now I am plotting the PSD of the noise in dB. How do I plot it with respect to dBV? The reason for doing this is because the magnitude I got in the plot using MATLAB is in dB. But on the dynamic signal analyzer, it shows the similar plot but the magnitude is in dBV. I want to make sure what I got from MATLAB is correct by ...

Hi All, I'm have just been asked to try and implement a Matlab version of encoding for the Reed Solomon algorithm. I have done some research...

Hi All, I'm have just been asked to try and implement a Matlab version of encoding for the Reed Solomon algorithm. I have done some research and have found information, but I think I am still missin one piece to the puzzle. I have an array of 1115 bytes that I am trying to encode with the (255,223) Reed solomon encoding. Also, I need an interleave of 5. So I have created an array that is 5 ...

Hi all, Can any one tell me how to generate a colored noise in Matlab? Thanks chowdary

Hi all, Can any one tell me how to generate a colored noise in Matlab? Thanks chowdary

Ok, so I'm getting really confused by the way matlab is designing filters. In the description it says we are only considering frequencies from 0...

Ok, so I'm getting really confused by the way matlab is designing filters. In the description it says we are only considering frequencies from 0 to fs/2 Hz. However, all digital filter functions involve the use of bilinear transform, which considers all frequencies from 0 to inf Hz. Could someone please clarify what is going on? Thanks!

Hello, I observed a strange thing while decoding conv. codes using vitdec function from matlab. I am using a [7,5] constraint length 3 code....

Hello, I observed a strange thing while decoding conv. codes using vitdec function from matlab. I am using a [7,5] constraint length 3 code. I noticed that the BER changes significantly when I change the message length(keeping the traceback length of 15). I would really appreciated you kind response in this regard. Here are the BER results: Msglen: 15 30 300 ...

Using Matlab, I need some way to automatically find the point where an arbitrary filter response crosses a threshold. For example, given a...

Using Matlab, I need some way to automatically find the point where an arbitrary filter response crosses a threshold. For example, given a low pass filter, use freqz to find the response, then find the frequency that where the magnitude most closely corresponds to -3dB. If the response never exactly hits -3dB, interpolation might be nice, but not really necessary as I can generate enough po...

Hi everyone, I have 2 files: clean.wav and noise.wav I have to calculate SNR of clean+noise in matlab. Can someone tell me how to do?? Tnx a...

Hi everyone, I have 2 files: clean.wav and noise.wav I have to calculate SNR of clean+noise in matlab. Can someone tell me how to do?? Tnx a lot...

can u guys tell me , how i can decoding the data( 01010101010101 ) by using matlab decode function for 16QAM and 8PSK. only i can decoding the...

can u guys tell me , how i can decoding the data( 01010101010101 ) by using matlab decode function for 16QAM and 8PSK. only i can decoding the data when i use BPSK.

Greetings I hope I'm in the right place, and forgive me if I appear dumb! I need to do Fourier Transform analysis of some audio...

Greetings I hope I'm in the right place, and forgive me if I appear dumb! I need to do Fourier Transform analysis of some audio impulse response files, for a Uni assignment (Music Engineering). I have been recommended to use Matlab for this, and as my Uni has it, I have gained access... however I do not really know how to operate the program, and unfortunately I don't have time to start ...

Hi All, I am doing beamforming in MATLAB and I am not familiar in both very much. I hope someone can help me out by giving link of paper or...

Hi All, I am doing beamforming in MATLAB and I am not familiar in both very much. I hope someone can help me out by giving link of paper or MATLAB work. I have a planar array antenna (rectangular shape) with 16 elements. The RF signal will be incident on those array. I am trying to find the DOA(direction-of-arrival)on the antenna array. I am now trying to use a conventional beamformer algorith...

Hi-- I'm having difficulty getting the same results as the Reed-Solomon encoded test vectors provided in the 802.16 standard. The systematic...

Hi-- I'm having difficulty getting the same results as the Reed-Solomon encoded test vectors provided in the 802.16 standard. The systematic part is fine, the problem is with the parity bits. I'm using Matlab to simulate the RS encoding (using rsenc). Anybody has had a similar problem? Any Matlab source code available to generate the "right" codewords? Thanks for your help! This m...

Based on the many comments on the newsgroup, I've made these changes to plt: - Added a more obvious way to restore zoomed axis limits - Fixed...

Based on the many comments on the newsgroup, I've made these changes to plt: - Added a more obvious way to restore zoomed axis limits - Fixed minor bug with the Styles argument - Improved the Options argument and made it less cryptic - Supply documentation as html in addition to chm - Provided an easy way to use Matlab's default colors - Improved the orginization of the help file - Sourc...

This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C5F5CC.4C393C00 Content-Type:...

This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C5F5CC.4C393C00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi All, I was wondering of anyone of you have tried using the function = rayleighchan in MATLAB.=20 as it is a channel function I would expact it to generate uncorrelated = channel everytime. But surprizin...

Hi, I would like to simulate IEEE802.11a WLAN over a Rayleigh multipath channel using Matlab and I'm dealing with the...

Hi, I would like to simulate IEEE802.11a WLAN over a Rayleigh multipath channel using Matlab and I'm dealing with the function "h=rayleighchan(ts,fd,tau,pdb). I'm really confusing about the sample time which on I have to use 50ns as the bandwidth=20MHz or I should choose the time of OFDM symbol which is equal to 4us according to the IEEE standards. Do you have any idea? Thank you in Advance ...

hi.. here i m sending correct convolution code for matlab...%************************************************************************* % ...

hi.. here i m sending correct convolution code for matlab...%************************************************************************* % Convolution of Two signals %************************************************************************** %DKV clc; close all; clear all; x=[1,2,3,4]; %first signal h=[1,2,3,4,5]; %second signal N1=length(x); N2=length(h); X=[x,zero...

Hi all, I am trying to figure out if there is a way to do meaningful 2D filtering thru 1D filter functions... Assuming we don't have 2D...

Hi all, I am trying to figure out if there is a way to do meaningful 2D filtering thru 1D filter functions... Assuming we don't have 2D filters in Matlab and I only have 1D filters in Matlab. How can I achieve the results of 2D filtering via calling 1D filter functions? Thanks a lot!

Hi, I would like know how can I get frequency response from impulse response of a transfer function, let say 1/s+1 in Matlab 7.0 simulink....

Hi, I would like know how can I get frequency response from impulse response of a transfer function, let say 1/s+1 in Matlab 7.0 simulink. I would want to have a bode plot.What blocks am I suppose to use and what are the configuration? Thanking you in advance..

hi all, i need to design fir filter to eliminate frequency component; my signal banwith B=10kHZ, samples Fs=20kHz signal is corrupted by...

hi all, i need to design fir filter to eliminate frequency component; my signal banwith B=10kHZ, samples Fs=20kHz signal is corrupted by four sinusoids with frequncies: F1=10kHz F2=8889Hz F3=7778Hz F4=6667Hz i found H(z)( H(z)=(z-0.5)*(z-0.3889)*(z-0.4445)*(z-0.3334)) but i dont know how can i show in the matlab... pls help me thanx