From mmacdonald@rwth-aachen.de Mon Jul 04 10:40:50 1994 Path: ashpoly!cascade!bigsur!rwth-aachen!mmacdonald From: mmacdonald@rwth-aachen.de (Morag MacDonald) Newsgroups: comp.dsp Subject: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Jul04.104050.7173@rwth-aachen.de> Date: Mon, 04 Jul 1994 10:40:50 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 10 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. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Morag MacDonald Tape trading list upon request. SASE required for international mail. From fsmirnov@ox.ac.uk Wed Jul 06 04:27:50 1994 Path: ashpoly!cascade!brgate!saturno!ox!fsmirnov From: fsmirnov@ox.ac.uk (Fiona Smirnov) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Jul06.042750.7209@ox.ac.uk> Date: Wed, 06 Jul 1994 04:27:50 GMT References: <1994Jul04.104050.7173@rwth-aachen.de> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul04.104050.7173@rwth-aachen.de>, mmacdonald@rwth-aachen.de (Morag MacDonald) 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. -- Fiona Smirnov *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From ovasiliev@berkeley.edu Thu Jul 07 12:56:50 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!ovasiliev From: ovasiliev@berkeley.edu (Olga Vasiliev) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Jul07.125650.7045@berkeley.edu> Date: Thu, 07 Jul 1994 12:56:50 GMT References: <1994Jul04.104050.7173@rwth-aachen.de> <1994Jul06.042750.7209@ox.ac.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Jul06.042750.7209@ox.ac.uk>, fsmirnov@ox.ac.uk (Fiona Smirnov) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Olga Vasiliev -- UC Berkeley Department of EECS "The hatch is open. Is anyone listening?"