From kkim@u-tokyo.ac.jp Mon Feb 12 12:01:31 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!u-tokyo!kkim From: kkim@u-tokyo.ac.jp (Kenji Kim) Newsgroups: comp.dsp Subject: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Feb12.120131.4732@u-tokyo.ac.jp> Date: Mon, 12 Feb 1996 12:01:31 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. 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. -- Kenji Kim -- University of Tokyo Department of Information Science "Extraordinary claims require extraordinary spectra." From eivanov@delphi.com Tue Feb 13 08:20:31 1996 Path: ashpoly!cascade!transat!ukc!fennimore!delphi!eivanov From: eivanov@delphi.com (Élodie Ivanov) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Feb13.082031.2904@delphi.com> Date: Tue, 13 Feb 1996 08:20:31 GMT References: <1996Feb12.120131.4732@u-tokyo.ac.jp> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Feb12.120131.4732@u-tokyo.ac.jp>, kkim@u-tokyo.ac.jp (Kenji Kim) writes: > Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Élodie Ivanov Tape trading list upon request. SASE required for international mail. From mmoreno@hanse.de Thu Feb 15 03:05:31 1996 Path: ashpoly!cascade!bigsur!hanse!mmoreno From: mmoreno@hanse.de (Mei Moreno) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Feb15.030531.2937@hanse.de> Date: Thu, 15 Feb 1996 03:05:31 GMT References: <1996Feb12.120131.4732@u-tokyo.ac.jp> <1996Feb13.082031.2904@delphi.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Feb13.082031.2904@delphi.com>, eivanov@delphi.com (Élodie Ivanov) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Mei Moreno Tape trading list upon request. SASE required for international mail. From arodriguez@netcom.com Fri Feb 16 19:11:31 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!arodriguez From: arodriguez@netcom.com (Astrid Rodríguez) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Feb16.191131.9032@netcom.com> Date: Fri, 16 Feb 1996 19:11:31 GMT References: <1996Feb12.120131.4732@u-tokyo.ac.jp> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Feb12.120131.4732@u-tokyo.ac.jp>, kkim@u-tokyo.ac.jp (Kenji Kim) writes: > Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. > Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- === Astrid Rodríguez === Dept of Electrical Engineering, NETCOM On-Line Communication Services "When every node is whole, the channel opens." From jokonkwo@pacbell.net Sun Feb 18 17:58:31 1996 Path: ashpoly!cascade!brgate!saturno!pacbell!jokonkwo From: jokonkwo@pacbell.net (Ji-woo Okonkwo) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Feb18.175831.8731@pacbell.net> Date: Sun, 18 Feb 1996 17:58:31 GMT References: <1996Feb12.120131.4732@u-tokyo.ac.jp> <1996Feb13.082031.2904@delphi.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Feb13.082031.2904@delphi.com>, eivanov@delphi.com (Élodie Ivanov) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Ji-woo Okonkwo Opinions expressed are solely my own and not those of Pacific Bell Internet Services. ------------------------------------------------------------