From dlarsson@cmu.edu Sun Aug 20 04:15:28 1995 Path: ashpoly!cascade!bigsur!cmu!dlarsson From: dlarsson@cmu.edu (Dmitri Larsson) Newsgroups: comp.dsp Subject: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug20.041528.8731@cmu.edu> Date: Sun, 20 Aug 1995 04:15:28 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 How the 14 ASCII characters per node are encoded into the record groove. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. 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. -- Dmitri Larsson Tape trading list upon request. SASE required for international mail. From tkim@u-tokyo.ac.jp Tue Aug 22 05:42:28 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!u-tokyo!tkim From: tkim@u-tokyo.ac.jp (Takeshi Kim) Newsgroups: comp.dsp Subject: Re: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug22.054228.6974@u-tokyo.ac.jp> Date: Tue, 22 Aug 1995 05:42:28 GMT References: <1995Aug20.041528.8731@cmu.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Aug20.041528.8731@cmu.edu>, dlarsson@cmu.edu (Dmitri Larsson) writes: > How the 14 ASCII characters per node are encoded into the record groove. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Takeshi Kim Practical Peripherals 14.4 @ ISDN 64k bps "5 sigma is a discovery. 7 is a question." From nmoreno@titech.ac.jp Thu Aug 24 09:14:28 1995 Path: ashpoly!cascade!mxgate!coyoacan!titech!nmoreno From: nmoreno@titech.ac.jp (Natalia Moreno) Newsgroups: comp.dsp Subject: Re: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug24.091428.7031@titech.ac.jp> Date: Thu, 24 Aug 1995 09:14:28 GMT References: <1995Aug20.041528.8731@cmu.edu> <1995Aug22.054228.6974@u-tokyo.ac.jp> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug22.054228.6974@u-tokyo.ac.jp>, tkim@u-tokyo.ac.jp (Takeshi Kim) writes: > The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Natalia Moreno Opinions expressed are solely my own and not those of Tokyo Institute of Technology Computer Centre. ------------------------------------------------------------ From kkim@cern.ch Fri Aug 25 08:41:28 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cern!kkim From: kkim@cern.ch (Kenji Kim) Newsgroups: comp.dsp Subject: Re: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug25.084128.9595@cern.ch> Date: Fri, 25 Aug 1995 08:41:28 GMT References: <1995Aug20.041528.8731@cmu.edu> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Aug20.041528.8731@cmu.edu>, dlarsson@cmu.edu (Dmitri Larsson) writes: > How the 14 ASCII characters per node are encoded into the record groove. > Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Kenji Kim Practical Peripherals 14.4 @ ISDN 64k bps "We don't sign stars. We build them."