From msanchez@uu.net Fri Oct 20 15:45:16 1995 Path: ashpoly!cascade!mxgate!coyoacan!uu!msanchez From: msanchez@uu.net (Morag Sánchez) Newsgroups: comp.dsp Subject: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Oct20.154516.6741@uu.net> Date: Fri, 20 Oct 1995 15:45:16 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net 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'. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Morag Sánchez Opinions expressed are solely my own and not those of UUNET Technologies, Falls Church VA. ------------------------------------------------------------ From mchoi@delphi.com Sun Oct 22 08:02:16 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!delphi!mchoi From: mchoi@delphi.com (Morag Choi) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Oct22.080216.9911@delphi.com> Date: Sun, 22 Oct 1995 08:02:16 GMT References: <1995Oct20.154516.6741@uu.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Oct20.154516.6741@uu.net>, msanchez@uu.net (Morag Sánchez) writes: > How the 14 ASCII characters per node are encoded into the record groove. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- === Morag Choi === Dept of Electrical Engineering, Delphi Internet Services "Extraordinary claims require extraordinary spectra." From nkim@hanse.de Mon Oct 23 21:54:16 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!hanse!nkim From: nkim@hanse.de (Natalia Kim) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Oct23.215416.6447@hanse.de> Date: Mon, 23 Oct 1995 21:54:16 GMT References: <1995Oct20.154516.6741@uu.net> <1995Oct22.080216.9911@delphi.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Oct22.080216.9911@delphi.com>, mchoi@delphi.com (Morag Choi) 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. -- Natalia Kim "Do not worship the copy." Sun SparcStation 20 / TOS 4.04 From btakahashi@berkeley.edu Tue Oct 24 02:10:16 1995 Path: ashpoly!cascade!brgate!saturno!berkeley!btakahashi From: btakahashi@berkeley.edu (Bill Takahashi) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Oct24.021016.9611@berkeley.edu> Date: Tue, 24 Oct 1995 02:10:16 GMT References: <1995Oct20.154516.6741@uu.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Oct20.154516.6741@uu.net>, msanchez@uu.net (Morag Sánchez) writes: > How the 14 ASCII characters per node are encoded into the record groove. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Bill Takahashi "Measuring a record you own is listening, not piracy." 486DX2/66 (Linux 1.2.13) / FreeBSD 2.1