From landersson@cam.ac.uk Sun May 28 09:25:40 1995 Path: ashpoly!cascade!brgate!saturno!cam!landersson From: landersson@cam.ac.uk (Liam Andersson) Newsgroups: comp.dsp Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995May28.092540.6245@cam.ac.uk> Date: Sun, 28 May 1995 09:25:40 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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). The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Liam Andersson Tape trading list upon request. SASE required for international mail. From klaurent@purdue.edu Mon May 29 05:41:40 1995 Path: ashpoly!cascade!brgate!saturno!purdue!klaurent From: klaurent@purdue.edu (Kenji Laurent) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995May29.054140.7246@purdue.edu> Date: Mon, 29 May 1995 05:41:40 GMT References: <1995May28.092540.6245@cam.ac.uk> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995May28.092540.6245@cam.ac.uk>, landersson@cam.ac.uk (Liam Andersson) 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! -- Kenji Laurent Tape trading list upon request. SASE required for international mail.