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ryujin_ssdt
Joined: 15 Feb 2007
Posts: 2
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 25 May 2007 3:04 cyclic matlab |
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Cyclostationarity is a common property of man-made digital signals that has a vast number of uses in digital communications: http://spincom.ece.umn.edu/papers04/bib05eurasip.pdf
To make use of cyclostationarity it is necessary to estimate the Cyclic Cross Autocorrelation or the Cyclic Cross Spectrum of the received signals.
In a simulation how do I estimate these two values?? I have searched a lot of forums, boards and mailing lists and I am unable to find a Matlab code to estimate the Cyclic Cross Autocorrelation nor the Cyclic Cross Spectrum of noisy signal vectors.
I have read some papers by Gardner and Giannikis but they are heavy in maths, that I am not good at, and no pseudo algorithm is presented to help me implement it in Matlab.
Maybe obtaining these estimates is so trivial that is considered common knowledge or it is so hard to do that everybody is avoiding it??
If anyone knows of a function/program (Matlab ) to estimate the Cyclic Cross Spectrum and Cyclic Cross Spectra of two modulated signals with AWGN noise please let me know..
thanks
Ryujin
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ryujin_ssdt
Joined: 15 Feb 2007
Posts: 2
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29 May 2007 10:51 Re: Cyclic Spectral Estimator (Matlab) |
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| Is it difficult to estimate the cyclic cross spectrum of two gaussian sequences in Matlab? are there any functions or libraries to do this already?
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AARTHIREDDY
Joined: 18 Dec 2005
Posts: 36
Helped: 13
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08 Jan 2008 16:05 Re: Cyclic Spectral Estimator (Matlab) |
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hi,
Here are programs by Hirethurpi manipal at this link. He has built cylic spectrum (Cylic spectrum density). please check the files at this link
he has used it for QPSK signals and estimate baud rate and frequency
h**p://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=16742&objectType=File
thanks
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