From vsantos@rwth-aachen.de Mon May 27 01:08:30 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!vsantos From: vsantos@rwth-aachen.de (Valeria Santos) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May27.010830.4187@rwth-aachen.de> Date: Mon, 27 May 1996 01:08:30 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 How the 14 ASCII characters per node are encoded into the record groove. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). Has anyone encountered bit errors in their decoded text? The Golay decoder corrects up to 3 bit errors per 24-bit codeword. -- Valeria Santos "Marcus is not one man." Macintosh IIfx / NEXTSTEP 3.3 From iandersson@inria.fr Tue May 28 21:14:30 1996 Path: ashpoly!cascade!transat!ukc!fennimore!inria!iandersson From: iandersson@inria.fr (Ines Andersson) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May28.211430.8142@inria.fr> Date: Tue, 28 May 1996 21:14:30 GMT References: <1996May27.010830.4187@rwth-aachen.de> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996May27.010830.4187@rwth-aachen.de>, vsantos@rwth-aachen.de (Valeria Santos) writes: > How the 14 ASCII characters per node are encoded into the record groove. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Ines Andersson Tape trading list upon request. SASE required for international mail.