From smartinez@cam.ac.uk Thu Nov 21 20:56:54 1996 Path: ashpoly!cascade!mxgate!coyoacan!cam!smartinez From: smartinez@cam.ac.uk (Seo-yeon Martínez) Newsgroups: comp.dsp Subject: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Nov21.205654.9702@cam.ac.uk> Date: Thu, 21 Nov 1996 20:56:54 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 11 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. -- Seo-yeon Martínez "When every node is whole, the channel opens." Pentium 90 (OS/2 Warp) / TOS 4.04 From ntanaka@u-tokyo.ac.jp Sat Nov 23 16:39:54 1996 Path: ashpoly!cascade!bigsur!u-tokyo!ntanaka From: ntanaka@u-tokyo.ac.jp (Nadine Tanaka) Newsgroups: comp.dsp Subject: Re: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Nov23.163954.7447@u-tokyo.ac.jp> Date: Sat, 23 Nov 1996 16:39:54 GMT References: <1996Nov21.205654.9702@cam.ac.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov21.205654.9702@cam.ac.uk>, smartinez@cam.ac.uk (Seo-yeon Martínez) 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. -- Nadine Tanaka Zyxel U-1496E @ 14,400 bps "The carrier frequency does not drift by accident."