From knilsson@clari.net Wed Mar 06 17:01:00 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!clari!knilsson From: knilsson@clari.net (Karen Nilsson) Newsgroups: comp.dsp Subject: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Mar06.170100.7652@clari.net> Date: Wed, 06 Mar 1996 17:01:00 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net 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). Has anyone encountered bit errors in their decoded text? The Golay decoder corrects up to 3 bit errors per 24-bit codeword. -- === Karen Nilsson === Dept of Electrical Engineering, ClariNet Communications Corp "Hold for relay." From rmoreno@purdue.edu Thu Mar 07 03:06:00 1996 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!rmoreno From: rmoreno@purdue.edu (Rodrigo Moreno) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Mar07.030600.9891@purdue.edu> Date: Thu, 07 Mar 1996 03:06:00 GMT References: <1996Mar06.170100.7652@clari.net> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Mar06.170100.7652@clari.net>, knilsson@clari.net (Karen Nilsson) writes: > How the 14 ASCII characters per node are encoded into the record groove. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Rodrigo Moreno *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From tkowalski@illinois.edu Thu Mar 07 12:41:00 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!tkowalski From: tkowalski@illinois.edu (Tomas Kowalski) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Mar07.124100.2916@illinois.edu> Date: Thu, 07 Mar 1996 12:41:00 GMT References: <1996Mar06.170100.7652@clari.net> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Mar06.170100.7652@clari.net>, knilsson@clari.net (Karen Nilsson) writes: > How the 14 ASCII characters per node are encoded into the record groove. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Tomas Kowalski Opinions expressed are solely my own and not those of University of Illinois Urbana-Champaign. ------------------------------------------------------------ From rschneider@uu.net Fri Mar 08 00:45:00 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!rschneider From: rschneider@uu.net (Rodrigo Schneider) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Mar08.004500.3258@uu.net> Date: Fri, 08 Mar 1996 00:45:00 GMT References: <1996Mar06.170100.7652@clari.net> <1996Mar07.124100.2916@illinois.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar07.124100.2916@illinois.edu>, tkowalski@illinois.edu (Tomas Kowalski) 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. -- Rodrigo Schneider *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0