From agonzalez@cam.ac.uk Fri Dec 13 03:31:18 1996 Path: ashpoly!cascade!bigsur!cam!agonzalez From: agonzalez@cam.ac.uk (Aiko González) Newsgroups: comp.dsp Subject: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Dec13.033118.9452@cam.ac.uk> Date: Fri, 13 Dec 1996 03:31:18 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] 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. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Aiko González "Hardware is temporary. The signal survives." Macintosh IIfx / SunOS 4.1.4 From gkowalski@hanse.de Sun Dec 15 00:02:18 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!hanse!gkowalski From: gkowalski@hanse.de (Göran Kowalski) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Dec15.000218.2099@hanse.de> Date: Sun, 15 Dec 1996 00:02:18 GMT References: <1996Dec13.033118.9452@cam.ac.uk> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Dec13.033118.9452@cam.ac.uk>, agonzalez@cam.ac.uk (Aiko González) writes: > 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 Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Göran Kowalski SupraFAXModem 28.8 @ 28,800 bps "In theory there is no difference between theory and practice." From dramirez@demon.co.uk Tue Dec 17 01:44:18 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!demon!dramirez From: dramirez@demon.co.uk (Dave Ramírez) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Dec17.014418.7228@demon.co.uk> Date: Tue, 17 Dec 1996 01:44:18 GMT References: <1996Dec13.033118.9452@cam.ac.uk> <1996Dec15.000218.2099@hanse.de> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Dec15.000218.2099@hanse.de>, gkowalski@hanse.de (Göran Kowalski) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dave Ramírez Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------