From ssantos@cern.ch Sat May 04 20:05:31 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!ssantos From: ssantos@cern.ch (Sven Santos) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May04.200531.4376@cern.ch> Date: Sat, 04 May 1996 20:05:31 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Sven Santos *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From mfournier@delphi.com Mon May 06 23:44:31 1996 Path: ashpoly!cascade!bigsur!delphi!mfournier From: mfournier@delphi.com (Mike Fournier) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May06.234431.5489@delphi.com> Date: Mon, 06 May 1996 23:44:31 GMT References: <1996May04.200531.4376@cern.ch> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996May04.200531.4376@cern.ch>, ssantos@cern.ch (Sven Santos) 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. -- === Mike Fournier === Dept of Electrical Engineering, Delphi Internet Services "5 sigma is a discovery. 7 is a question." From jlee@uu.net Tue May 07 23:55:31 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!uu!jlee From: jlee@uu.net (Jens Lee) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May07.235531.7980@uu.net> Date: Tue, 07 May 1996 23:55:31 GMT References: <1996May04.200531.4376@cern.ch> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996May04.200531.4376@cern.ch>, ssantos@cern.ch (Sven Santos) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Jens Lee Tape trading list upon request. SASE required for international mail. From sramirez@kth.se Wed May 08 23:24:31 1996 Path: ashpoly!cascade!brgate!saturno!kth!sramirez From: sramirez@kth.se (Sun-mi Ramírez) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May08.232431.4075@kth.se> Date: Wed, 08 May 1996 23:24:31 GMT References: <1996May04.200531.4376@cern.ch> <1996May07.235531.7980@uu.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996May07.235531.7980@uu.net>, jlee@uu.net (Jens Lee) writes: > The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Sun-mi Ramírez -- Royal Institute of Technology, Stockholm "In theory there is no difference between theory and practice."