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Article #2502Re: Digital Communications : Modulation Recognition and frequency spectrum
From: Markus L
Date: Wed, 13 Mar 2002 15:26
Date: Wed, 13 Mar 2002 15:26
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2030 bytes
Get the sound samples of all common digi modes from http://www.geocities.com/CapeCanaveral/Cockpit/2800/digital/ and convert them into spectra using any FFT software! 73, Markus HB9BRJ -- e-mail address is ROT13 encoded. Decode before replying. "John" <john_james@email.com> 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 >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f8fcc,8e2474bd9324069 X-Google-Attributes: gidf8fcc,public X-Google-Thread: f68a8,8e2474bd9324069 X-Google-Attributes: gidf68a8,public X-Google-Thread: f7653,8e2474bd9324069 X-Google-Attributes: gidf7653,public X-Google-Thread: fcc6e,8e2474bd9324069 X-Google-Attributes: gidfcc6e,public X-Google-Thread: 111d0a,8e2474bd9324069 X-Google-Attributes: gid111d0a,public X-Google-ArrivalTime: 2002-03-13 07:26:22 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!newsfeed.esat.net!newsfeed.wirehub.nl!bnewspeer00.bru.ops.eu.uu.net!bnewspost00.bru.ops.eu.uu.net!emea.uu.net!read-nat.news.nl.uu.net!not-for-mail From: "Markus L" <uo9oew@lnubb.pbz> Newsgroups: comp.dsp,rec.radio.amateur.digital.misc,sci.electronics.basics,rec.radio.amateur.antenna,aus.radio.amateur.digital References: <237340ff.0203130651.245799d9@posting.google.com> Subject: Re: Digital Communications : Modulation Recognition and frequency spectrum Date: Wed, 13 Mar 2002 16:26:46 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Lines: 20 Message-ID: <3c8f6f9b$0$225$4d4ebb8e@read-nat.news.nl.uu.net> NNTP-Posting-Host: gw-ehv01.pnl.philips.com X-Trace: 1016033180 read-nat.news.nl.uu.net 225 212.153.190.2 X-Complaints-To: abuse@nl.uu.net