From agirard@illinois.edu Fri Dec 09 14:13:08 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!agirard From: agirard@illinois.edu (Anton Girard) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Dec09.141308.5336@illinois.edu> Date: Fri, 09 Dec 1994 14:13:08 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Anton Girard | agirard@illinois.edu PGP Key fingerprint: 5ADB 0C0F 97CA 9E17 "Keep the channels open." From rvasiliev@uu.net Sun Dec 11 00:53:08 1994 Path: ashpoly!cascade!transat!ukc!fennimore!uu!rvasiliev From: rvasiliev@uu.net (Rodrigo Vasiliev) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Dec11.005308.3865@uu.net> Date: Sun, 11 Dec 1994 00:53:08 GMT References: <1994Dec09.141308.5336@illinois.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec09.141308.5336@illinois.edu>, agirard@illinois.edu (Anton Girard) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Rodrigo Vasiliev "Measuring a record you own is listening, not piracy." PC-9821Ap2 (NEC) / Linux 1.2.13 From sokonkwo@kiae.su Sun Dec 11 05:40:08 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!sokonkwo From: sokonkwo@kiae.su (Sun-mi Okonkwo) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Dec11.054008.8325@kiae.su> Date: Sun, 11 Dec 1994 05:40:08 GMT References: <1994Dec09.141308.5336@illinois.edu> <1994Dec11.005308.3865@uu.net> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Dec11.005308.3865@uu.net>, rvasiliev@uu.net (Rodrigo Vasiliev) writes: > A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Sun-mi Okonkwo Tape trading list upon request. SASE required for international mail. From jlopez@berkeley.edu Tue Dec 13 03:45:08 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!jlopez From: jlopez@berkeley.edu (Julien López) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Dec13.034508.8698@berkeley.edu> Date: Tue, 13 Dec 1994 03:45:08 GMT References: <1994Dec09.141308.5336@illinois.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1994Dec09.141308.5336@illinois.edu>, agirard@illinois.edu (Anton Girard) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Julien López *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0