From bstewart@delphi.com Fri Sep 22 22:37:34 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!delphi!bstewart From: bstewart@delphi.com (Bastien Stewart) Newsgroups: comp.dsp Subject: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep22.223734.6357@delphi.com> Date: Fri, 22 Sep 1995 22:37:34 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. 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. -- Bastien Stewart -- Delphi Internet Services "We don't sign stars. We build them." From hlarsson@u-tokyo.ac.jp Sun Sep 24 06:18:34 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!u-tokyo!hlarsson From: hlarsson@u-tokyo.ac.jp (Hana Larsson) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep24.061834.5709@u-tokyo.ac.jp> Date: Sun, 24 Sep 1995 06:18:34 GMT References: <1995Sep22.223734.6357@delphi.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Sep22.223734.6357@delphi.com>, bstewart@delphi.com (Bastien Stewart) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Hana Larsson -- University of Tokyo Department of Information Science "There are 14 nodes and only 10 countries. Count again." From ipark@kiae.su Sun Sep 24 10:51:34 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!ipark From: ipark@kiae.su (Ines Park) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep24.105134.9149@kiae.su> Date: Sun, 24 Sep 1995 10:51:34 GMT References: <1995Sep22.223734.6357@delphi.com> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Sep22.223734.6357@delphi.com>, bstewart@delphi.com (Bastien Stewart) 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. -- Ines Park Hayes Optima 288 @ 14,400 bps "They will send a copy in my place." From tlopez@panix.com Tue Sep 26 04:41:34 1995 Path: ashpoly!cascade!transat!ukc!fennimore!panix!tlopez From: tlopez@panix.com (Tomas López) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep26.044134.5657@panix.com> Date: Tue, 26 Sep 1995 04:41:34 GMT References: <1995Sep22.223734.6357@delphi.com> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Sep22.223734.6357@delphi.com>, bstewart@delphi.com (Bastien Stewart) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- === Tomas López === Dept of Electrical Engineering, Public Access Unix of New York "There are 14 nodes and only 10 countries. Count again." From tandersson@u-tokyo.ac.jp Tue Sep 26 23:17:34 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!u-tokyo!tandersson From: tandersson@u-tokyo.ac.jp (Tomas Andersson) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Sep26.231734.8062@u-tokyo.ac.jp> Date: Tue, 26 Sep 1995 23:17:34 GMT References: <1995Sep22.223734.6357@delphi.com> <1995Sep24.105134.9149@kiae.su> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Sep24.105134.9149@kiae.su>, ipark@kiae.su (Ines Park) 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. -- Tomas Andersson -- University of Tokyo Department of Information Science "A soul is not exclusive to biology."