🚀 go-pugleaf

jrayala@hotmail.com (Jitendra Rayala) wrote in message news:<18a9fced.0203131345.3ca6f7cb@posting.google.com>...
> john_james@email.com (John) wrote in message news:<237340ff.0203130651.245799d9@posting.google.com>...
> > Hi,
> > I am looking for a practical approach of modulation recognition of a
> > signal using its frequency spectrum. I need a practical approach but
> > any help in theoretical areas will be welcomed too.
> > Bests,
> > John
> 
> John, 
> 
> If you are not too particular about algorithms based only on frequency
> spectrum, the following paper has a couple of algorithms using neural
> networks. The same authors also have a book on the subject (See the
> references). Hope this helps..
> 
> A. K. Nandi and E. E. Azzouz, "Algorithms for Automatic Modulation
> Recognition of Communication Signals," IEEE Trans. on Communications,
> vol 46, pp 431-436 April 1998.
> 
> Jitendra

Jitendra,

Thank you for your answer. I need just a practical approach, depending
on frequency or even time domain charactristics. It is not important
if it is automatic or not, but I need to discover the modulation type
of a given signal. At present I don't have access to the book but I
have the paper. Although I have not read it completely but I think it
is not so practical. Any way, thank you very much for your help.

John