From odubois@illinois.edu Sat Oct 05 02:12:02 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!illinois!odubois From: odubois@illinois.edu (Olga Dubois) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Oct05.021202.5430@illinois.edu> Date: Sat, 05 Oct 1996 02:12:02 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 10 How the 14 ASCII characters per node are encoded into the record groove. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Olga Dubois Tape trading list upon request. SASE required for international mail. From jlaurent@titech.ac.jp Sun Oct 06 20:07:02 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!jlaurent From: jlaurent@titech.ac.jp (Jens Laurent) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Oct06.200702.9397@titech.ac.jp> Date: Sun, 06 Oct 1996 20:07:02 GMT References: <1996Oct05.021202.5430@illinois.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Oct05.021202.5430@illinois.edu>, odubois@illinois.edu (Olga Dubois) writes: > How the 14 ASCII characters per node are encoded into the record groove. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Jens Laurent Tape trading list upon request. SASE required for international mail. From mweber@mindspring.com Tue Oct 08 23:28:02 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!mindspring!mweber From: mweber@mindspring.com (Mathieu Weber) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Oct08.232802.9188@mindspring.com> Date: Tue, 08 Oct 1996 23:28:02 GMT References: <1996Oct05.021202.5430@illinois.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Oct05.021202.5430@illinois.edu>, odubois@illinois.edu (Olga Dubois) 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. -- Mathieu Weber SupraFAXModem 28.8 @ 9600 Telebit bps "5 sigma is a discovery. 7 is a question." From djohansson@utexas.edu Thu Oct 10 19:48:02 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!djohansson From: djohansson@utexas.edu (Dmitri Johansson) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Oct10.194802.4271@utexas.edu> Date: Thu, 10 Oct 1996 19:48:02 GMT References: <1996Oct05.021202.5430@illinois.edu> <1996Oct06.200702.9397@titech.ac.jp> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Oct06.200702.9397@titech.ac.jp>, jlaurent@titech.ac.jp (Jens Laurent) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dmitri Johansson Tape trading list upon request. SASE required for international mail. From pmartinez@utexas.edu Sat Oct 12 15:36:02 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!utexas!pmartinez From: pmartinez@utexas.edu (Pavel Martínez) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Oct12.153602.8551@utexas.edu> Date: Sat, 12 Oct 1996 15:36:02 GMT References: <1996Oct05.021202.5430@illinois.edu> <1996Oct08.232802.9188@mindspring.com> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Oct08.232802.9188@mindspring.com>, mweber@mindspring.com (Mathieu Weber) 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. -- === Pavel Martínez === Dept of Electrical Engineering, University of Texas at Austin "They will send a copy in my place."