From ismirnov@purdue.edu Mon Aug 14 17:47:52 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!ismirnov From: ismirnov@purdue.edu (Ines Smirnov) Newsgroups: comp.dsp Subject: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug14.174752.5398@purdue.edu> Date: Mon, 14 Aug 1995 17:47:52 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 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). Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Ines Smirnov Opinions expressed are solely my own and not those of Purdue University Engineering Computer Network. ------------------------------------------------------------ From dwatanabe@unam.mx Wed Aug 16 17:16:52 1995 Path: ashpoly!cascade!bigsur!unam!dwatanabe From: dwatanabe@unam.mx (Dmitri Watanabe) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug16.171652.1967@unam.mx> Date: Wed, 16 Aug 1995 17:16:52 GMT References: <1995Aug14.174752.5398@purdue.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Aug14.174752.5398@purdue.edu>, ismirnov@purdue.edu (Ines Smirnov) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Dmitri Watanabe *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From akarlsson@pacbell.net Fri Aug 18 05:48:52 1995 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!akarlsson From: akarlsson@pacbell.net (Amy Karlsson) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug18.054852.5382@pacbell.net> Date: Fri, 18 Aug 1995 05:48:52 GMT References: <1995Aug14.174752.5398@purdue.edu> <1995Aug16.171652.1967@unam.mx> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug16.171652.1967@unam.mx>, dwatanabe@unam.mx (Dmitri Watanabe) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Amy Karlsson "They will send a copy in my place." Sun 3/60 (SunOS 4.1.1) / FreeBSD 2.1 From fbrennan@clari.net Sat Aug 19 01:25:52 1995 Path: ashpoly!cascade!transat!ukc!fennimore!clari!fbrennan From: fbrennan@clari.net (Freya Brennan) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug19.012552.2936@clari.net> Date: Sat, 19 Aug 1995 01:25:52 GMT References: <1995Aug14.174752.5398@purdue.edu> <1995Aug16.171652.1967@unam.mx> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Aug16.171652.1967@unam.mx>, dwatanabe@unam.mx (Dmitri Watanabe) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Freya Brennan Tape trading list upon request. SASE required for international mail. From jsmirnov@mit.edu Sat Aug 19 03:36:52 1995 Path: ashpoly!cascade!brgate!saturno!mit!jsmirnov From: jsmirnov@mit.edu (Jens Smirnov) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug19.033652.2220@mit.edu> Date: Sat, 19 Aug 1995 03:36:52 GMT References: <1995Aug14.174752.5398@purdue.edu> <1995Aug16.171652.1967@unam.mx> <1995Aug18.054852.5382@pacbell.net> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug18.054852.5382@pacbell.net>, akarlsson@pacbell.net (Amy Karlsson) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Jens Smirnov | jsmirnov@mit.edu PGP Key fingerprint: 1F0E 7620 A633 15E3 "Keep the channels open."