From bsouza@cern.ch Sun Dec 10 20:01:30 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cern!bsouza From: bsouza@cern.ch (Brian Souza) Newsgroups: comp.dsp Subject: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Dec10.200130.9509@cern.ch> Date: Sun, 10 Dec 1995 20:01:30 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 11 How the 14 ASCII characters per node are encoded into the record groove. 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). When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Brian Souza | bsouza@cern.ch PGP Key fingerprint: 0B87 012D 3E17 DC98 "Keep the channels open." From mnilsson@illinois.edu Mon Dec 11 12:58:30 1995 Path: ashpoly!cascade!bigsur!illinois!mnilsson From: mnilsson@illinois.edu (Mikhail Nilsson) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Dec11.125830.2662@illinois.edu> Date: Mon, 11 Dec 1995 12:58:30 GMT References: <1995Dec10.200130.9509@cern.ch> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Dec10.200130.9509@cern.ch>, bsouza@cern.ch (Brian Souza) writes: > How the 14 ASCII characters per node are encoded into the record groove. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! If you are posting from AOL, please read RFC 1036 before posting again. -- Mikhail Nilsson Tape trading list upon request. SASE required for international mail. From jsmirnov@utexas.edu Wed Dec 13 09:39:30 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!jsmirnov From: jsmirnov@utexas.edu (Jens Smirnov) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Dec13.093930.4671@utexas.edu> Date: Wed, 13 Dec 1995 09:39:30 GMT References: <1995Dec10.200130.9509@cern.ch> <1995Dec11.125830.2662@illinois.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Dec11.125830.2662@illinois.edu>, mnilsson@illinois.edu (Mikhail Nilsson) writes: > A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Jens Smirnov Tape trading list upon request. SASE required for international mail. From llopez@unam.mx Fri Dec 15 07:11:30 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!llopez From: llopez@unam.mx (Lisa López) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Dec15.071130.4428@unam.mx> Date: Fri, 15 Dec 1995 07:11:30 GMT References: <1995Dec10.200130.9509@cern.ch> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Dec10.200130.9509@cern.ch>, bsouza@cern.ch (Brian Souza) writes: > How the 14 ASCII characters per node are encoded into the record groove. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Lisa López *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From jjohansson@uu.net Sat Dec 16 06:26:30 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uu!jjohansson From: jjohansson@uu.net (Jens Johansson) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Dec16.062630.3448@uu.net> Date: Sat, 16 Dec 1995 06:26:30 GMT References: <1995Dec10.200130.9509@cern.ch> <1995Dec11.125830.2662@illinois.edu> <1995Dec13.093930.4671@utexas.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Dec13.093930.4671@utexas.edu>, jsmirnov@utexas.edu (Jens Smirnov) writes: > The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Jens Johansson -- UUNET Technologies, Falls Church VA "Extraordinary claims require extraordinary spectra."