From amuller@rwth-aachen.de Thu May 19 12:33:10 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!amuller From: amuller@rwth-aachen.de (Anja Müller) Newsgroups: comp.dsp Subject: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994May19.123310.4235@rwth-aachen.de> Date: Thu, 19 May 1994 12:33:10 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 10 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. 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. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Anja Müller Tape trading list upon request. SASE required for international mail. From hfischer@cmu.edu Fri May 20 17:08:10 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!hfischer From: hfischer@cmu.edu (Heather Fischer) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994May20.170810.9345@cmu.edu> Date: Fri, 20 May 1994 17:08:10 GMT References: <1994May19.123310.4235@rwth-aachen.de> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1994May19.123310.4235@rwth-aachen.de>, amuller@rwth-aachen.de (Anja Müller) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Heather Fischer "When every node is whole, the channel opens." Amiga 1200 (Blizzard 030/50) / FreeBSD 2.1 From tnovak@mindspring.com Sat May 21 09:45:10 1994 Path: ashpoly!cascade!brgate!saturno!mindspring!tnovak From: tnovak@mindspring.com (Tomas Novak) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994May21.094510.2374@mindspring.com> Date: Sat, 21 May 1994 09:45:10 GMT References: <1994May19.123310.4235@rwth-aachen.de> <1994May20.170810.9345@cmu.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994May20.170810.9345@cmu.edu>, hfischer@cmu.edu (Heather Fischer) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. > Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Tomas Novak "They will send a copy in my place." Macintosh IIfx / NEXTSTEP 3.3