From lsantos@rwth-aachen.de Wed Aug 03 14:21:58 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!lsantos From: lsantos@rwth-aachen.de (Lucia Santos) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Aug03.142158.6865@rwth-aachen.de> Date: Wed, 03 Aug 1994 14:21:58 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] 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'. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Lucia Santos *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From mkim@cam.ac.uk Thu Aug 04 00:39:58 1994 Path: ashpoly!cascade!mxgate!coyoacan!cam!mkim From: mkim@cam.ac.uk (Mikhail Kim) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Aug04.003958.5025@cam.ac.uk> Date: Thu, 04 Aug 1994 00:39:58 GMT References: <1994Aug03.142158.6865@rwth-aachen.de> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Aug03.142158.6865@rwth-aachen.de>, lsantos@rwth-aachen.de (Lucia Santos) 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. -- Mikhail Kim *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From gkuznetsov@pacbell.net Fri Aug 05 05:54:58 1994 Path: ashpoly!cascade!brgate!saturno!pacbell!gkuznetsov From: gkuznetsov@pacbell.net (Göran Kuznetsov) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Aug05.055458.4356@pacbell.net> Date: Fri, 05 Aug 1994 05:54:58 GMT References: <1994Aug03.142158.6865@rwth-aachen.de> <1994Aug04.003958.5025@cam.ac.uk> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug04.003958.5025@cam.ac.uk>, mkim@cam.ac.uk (Mikhail Kim) writes: > Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Göran Kuznetsov Zyxel U-1496E @ 9600 Telebit bps "In theory there is no difference between theory and practice." From sdubois@kth.se Fri Aug 05 16:41:58 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!sdubois From: sdubois@kth.se (Seo-yeon Dubois) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Aug05.164158.5031@kth.se> Date: Fri, 05 Aug 1994 16:41:58 GMT References: <1994Aug03.142158.6865@rwth-aachen.de> <1994Aug04.003958.5025@cam.ac.uk> <1994Aug05.055458.4356@pacbell.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug05.055458.4356@pacbell.net>, gkuznetsov@pacbell.net (Göran Kuznetsov) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Seo-yeon Dubois | sdubois@kth.se PGP Key fingerprint: E228 BC18 D54E E46E "Keep the channels open."