From rvasiliev@berkeley.edu Tue Sep 26 23:43:43 1995 Path: ashpoly!cascade!transat!ukc!fennimore!berkeley!rvasiliev From: rvasiliev@berkeley.edu (Renata Vasiliev) Newsgroups: comp.dsp Subject: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep26.234343.5104@berkeley.edu> Date: Tue, 26 Sep 1995 23:43:43 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 10 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Renata Vasiliev -- UC Berkeley Department of EECS "Marcus is not one man." From kdubois@ox.ac.uk Thu Sep 28 17:23:43 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!ox!kdubois From: kdubois@ox.ac.uk (Kirsty Dubois) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep28.172343.1144@ox.ac.uk> Date: Thu, 28 Sep 1995 17:23:43 GMT References: <1995Sep26.234343.5104@berkeley.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Sep26.234343.5104@berkeley.edu>, rvasiliev@berkeley.edu (Renata Vasiliev) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Kirsty Dubois "We don't sign stars. We build them." Decstation 5000/200 / Linux 1.2.13 From npark@rwth-aachen.de Sat Sep 30 00:39:43 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!npark From: npark@rwth-aachen.de (Nadia Park) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep30.003943.1312@rwth-aachen.de> Date: Sat, 30 Sep 1995 00:39:43 GMT References: <1995Sep26.234343.5104@berkeley.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Sep26.234343.5104@berkeley.edu>, rvasiliev@berkeley.edu (Renata Vasiliev) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Nadia Park Hayes Optima 288 @ 28,800 bps "Tape doesn't lie at 02:14. Ears do." From dsantos@mindspring.com Sat Sep 30 13:19:43 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!dsantos From: dsantos@mindspring.com (Dmitri Santos) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep30.131943.3928@mindspring.com> Date: Sat, 30 Sep 1995 13:19:43 GMT References: <1995Sep26.234343.5104@berkeley.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Sep26.234343.5104@berkeley.edu>, rvasiliev@berkeley.edu (Renata Vasiliev) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Dmitri Santos "Extraordinary claims require extraordinary spectra." NeXTstation Turbo Color / TOS 4.04