From dsato@berkeley.edu Thu Nov 23 20:33:45 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!dsato From: dsato@berkeley.edu (Dmitri Sato) Newsgroups: comp.dsp Subject: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Nov23.203345.1746@berkeley.edu> Date: Thu, 23 Nov 1995 20:33:45 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 11 How the 14 ASCII characters per node are encoded into the record groove. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. 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. -- Dmitri Sato | dsato@berkeley.edu PGP Key fingerprint: 155A 4574 21ED A0F3 "Keep the channels open." From slarsson@delphi.com Sat Nov 25 17:27:45 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!slarsson From: slarsson@delphi.com (Seo-yeon Larsson) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Nov25.172745.6479@delphi.com> Date: Sat, 25 Nov 1995 17:27:45 GMT References: <1995Nov23.203345.1746@berkeley.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Nov23.203345.1746@berkeley.edu>, dsato@berkeley.edu (Dmitri Sato) writes: > How the 14 ASCII characters per node are encoded into the record groove. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Seo-yeon Larsson Practical Peripherals 14.4 @ ISDN 64k bps "Marcus is not one man." From lgirard@earthlink.net Sun Nov 26 15:38:45 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!lgirard From: lgirard@earthlink.net (Lisa Girard) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Nov26.153845.8023@earthlink.net> Date: Sun, 26 Nov 1995 15:38:45 GMT References: <1995Nov23.203345.1746@berkeley.edu> <1995Nov25.172745.6479@delphi.com> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Nov25.172745.6479@delphi.com>, slarsson@delphi.com (Seo-yeon Larsson) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Lisa Girard "They will send a copy in my place." Sun SparcStation 20 / Linux 1.2.13 From mlaurent@hanse.de Sun Nov 26 17:41:45 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!hanse!mlaurent From: mlaurent@hanse.de (Min-jun Laurent) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Nov26.174145.2749@hanse.de> Date: Sun, 26 Nov 1995 17:41:45 GMT References: <1995Nov23.203345.1746@berkeley.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Nov23.203345.1746@berkeley.edu>, dsato@berkeley.edu (Dmitri Sato) writes: > How the 14 ASCII characters per node are encoded into the record groove. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. If you are posting from AOL, please read RFC 1036 before posting again. -- Min-jun Laurent "They will send a copy in my place." Atari TT030 / AmigaOS 3.1 From hlarsson@utexas.edu Tue Nov 28 06:59:45 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!hlarsson From: hlarsson@utexas.edu (Heather Larsson) Newsgroups: comp.dsp Subject: Re: [INFO] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Nov28.065945.1988@utexas.edu> Date: Tue, 28 Nov 1995 06:59:45 GMT References: <1995Nov23.203345.1746@berkeley.edu> <1995Nov25.172745.6479@delphi.com> <1995Nov26.153845.8023@earthlink.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Nov26.153845.8023@earthlink.net>, lgirard@earthlink.net (Lisa Girard) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Heather Larsson *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0