From asouza@titech.ac.jp Fri Sep 20 16:06:14 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!asouza From: asouza@titech.ac.jp (Astrid Souza) Newsgroups: comp.dsp Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep20.160614.2403@titech.ac.jp> Date: Fri, 20 Sep 1996 16:06:14 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 10 How the 14 ASCII characters per node are encoded into the record groove. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). 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. -- Astrid Souza Tape trading list upon request. SASE required for international mail. From jtanaka@unam.mx Sat Sep 21 22:09:14 1996 Path: ashpoly!cascade!brgate!saturno!unam!jtanaka From: jtanaka@unam.mx (Julien Tanaka) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep21.220914.7559@unam.mx> Date: Sat, 21 Sep 1996 22:09:14 GMT References: <1996Sep20.160614.2403@titech.ac.jp> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Sep20.160614.2403@titech.ac.jp>, asouza@titech.ac.jp (Astrid 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! -- Julien Tanaka Opinions expressed are solely my own and not those of Universidad Nacional Autónoma de México (DGSCA). ------------------------------------------------------------ From sschneider@panix.com Sun Sep 22 09:57:14 1996 Path: ashpoly!cascade!brgate!saturno!panix!sschneider From: sschneider@panix.com (Sergei Schneider) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep22.095714.3188@panix.com> Date: Sun, 22 Sep 1996 09:57:14 GMT References: <1996Sep20.160614.2403@titech.ac.jp> <1996Sep21.220914.7559@unam.mx> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Sep21.220914.7559@unam.mx>, jtanaka@unam.mx (Julien Tanaka) 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! -- Sergei Schneider "Hardware is temporary. The signal survives." NeXTstation Turbo Color / Linux 1.2.13 From awatanabe@cern.ch Mon Sep 23 10:10:14 1996 Path: ashpoly!cascade!mxgate!coyoacan!cern!awatanabe From: awatanabe@cern.ch (Astrid Watanabe) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep23.101014.6803@cern.ch> Date: Mon, 23 Sep 1996 10:10:14 GMT References: <1996Sep20.160614.2403@titech.ac.jp> <1996Sep21.220914.7559@unam.mx> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Sep21.220914.7559@unam.mx>, jtanaka@unam.mx (Julien Tanaka) writes: > A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- === Astrid Watanabe === Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva "They will send a copy in my place."