Re: [digitalradio] Comparison of Performance of Digital Modulation in the Presence of adjacent QRM
here's the url http://ieeexplore.ieee.org/xpl/tocresult.jsp?isYear=1982&isnumber=23962&Submit32=Go+To+Issue - Original Message - From: "Andrew O'Brien" To: Sent: Monday, February 16, 2009 10:02 PM Subject: [digitalradio] Comparison of Performance of Digital Modulation in the Presence of adjacent QRM > FYI, anyone have the full articel ? > > Andy > Comparison of Performance of Digital Modulation Techniques in the > Presence of Adjacent Channel Interference > Milstein, L. Pickholtz, R. Schilling, D. > Univ. of California San Diego, La Jolla, CA, USA; > > > This paper appears in: Communications, IEEE Transactions on > Publication Date: Aug 1982 > Volume: 30, Issue: 8 > On page(s): 1984- 1993 > ISSN: 0090-6778 > Current Version Published: 2003-01-06 > > > > > > Abstract > The performance of four digital modulation techniques are compared to > one another when each is received in the presence of adjacent channel > interference. The interfering waveforms that each modulation format > sees are identical to the modulation format under consideration. The > four types of modulation are QPSK, 8-PSK, 16QASK, and QPR. Upper > bounds to the probability of error are derived and used to evaluate > the relative merits of the different schemes. > > > . > > > > > > Announce your digital presence via our Interactive Sked Page at > http://www.obriensweb.com/sked > > > Recommended software: Winwarbler, FLDIGI, DM780, or Multipsk > > > > Yahoo! Groups Links > > > >
[digitalradio] Re: Comparison of Performance of Digital Modulation in the Presence of adjacent QRM
--- In digitalradio@yahoogroups.com, "Andrew O'Brien" wrote: > > FYI, anyone have the full articel ? > > Andy > Comparison of Performance of Digital Modulation Techniques in the > Presence of Adjacent Channel Interference > Milstein, L. Pickholtz, R. Schilling, D. > Univ. of California San Diego, La Jolla, CA, USA; > > > This paper appears in: Communications, IEEE Transactions on > Publication Date: Aug 1982 > Volume: 30, Issue: 8 > On page(s): 1984- 1993 > ISSN: 0090-6778 > Current Version Published: 2003-01-06 I'm trying to understand what that means - Publication Date Aug 1982, Current Version Published 2003-01-06 That seems to say that if I go to the library and look up IEEE Transactions on Communications I will find it in the Aug 1982 issue; and that there is a version published almost 10 years later that is somewhere else. Jim W6JVE
[digitalradio] Re: Recent MFSK16 DX
--- In digitalradio@yahoogroups.com, "Graham" wrote: > but with the stability of modern rigs I dont see why the > original mfsk should not make a come back ? The only time I had trouble with MFSK16 and frequency drift was when I was using the Elecraft K-2 radio with its 100W amplifier, and before installing a frequency stability mod they developed. Never had any trouble after that.
