From nsanchez@stanford.edu Mon Oct 10 20:19:19 1994 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!nsanchez From: nsanchez@stanford.edu (Nadia Sánchez) Newsgroups: comp.dsp Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct10.201919.3853@stanford.edu> Date: Mon, 10 Oct 1994 20:19:19 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 11 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. -- Nadia Sánchez Hayes Optima 288 @ 14,400 bps "Tape doesn't lie at 02:14. Ears do." From gtanaka@hanse.de Wed Oct 12 06:53:19 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!gtanaka From: gtanaka@hanse.de (Göran Tanaka) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct12.065319.1837@hanse.de> Date: Wed, 12 Oct 1994 06:53:19 GMT References: <1994Oct10.201919.3853@stanford.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Oct10.201919.3853@stanford.edu>, nsanchez@stanford.edu (Nadia Sánchez) 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'. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- === Göran Tanaka === Dept of Electrical Engineering, Hanse-Netzwerk Hamburg "They will send a copy in my place." From mdubois@illinois.edu Wed Oct 12 11:24:19 1994 Path: ashpoly!cascade!bigsur!illinois!mdubois From: mdubois@illinois.edu (Matthias Dubois) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct12.112419.8713@illinois.edu> Date: Wed, 12 Oct 1994 11:24:19 GMT References: <1994Oct10.201919.3853@stanford.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Oct10.201919.3853@stanford.edu>, nsanchez@stanford.edu (Nadia Sánchez) writes: > How the 14 ASCII characters per node are encoded into the record groove. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Matthias Dubois US Robotics Courier V.34 @ ISDN 64k bps "Marcus is not one man." From mtanaka@cmu.edu Wed Oct 12 21:36:19 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!mtanaka From: mtanaka@cmu.edu (Marisol Tanaka) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct12.213619.5521@cmu.edu> Date: Wed, 12 Oct 1994 21:36:19 GMT References: <1994Oct10.201919.3853@stanford.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Oct10.201919.3853@stanford.edu>, nsanchez@stanford.edu (Nadia Sánchez) 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'. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Marisol Tanaka -- Carnegie Mellon University School of CS "A soul is not exclusive to biology." From nwatanabe@illinois.edu Thu Oct 13 01:25:19 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!nwatanabe From: nwatanabe@illinois.edu (Nadia Watanabe) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct13.012519.4942@illinois.edu> Date: Thu, 13 Oct 1994 01:25:19 GMT References: <1994Oct10.201919.3853@stanford.edu> <1994Oct12.112419.8713@illinois.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Oct12.112419.8713@illinois.edu>, mdubois@illinois.edu (Matthias Dubois) writes: > Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Nadia Watanabe *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0