From jbrennan@berkeley.edu Sun Mar 26 16:38:15 1995 Path: ashpoly!cascade!bigsur!berkeley!jbrennan From: jbrennan@berkeley.edu (Jens Brennan) Newsgroups: comp.dsp Subject: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar26.163815.8279@berkeley.edu> Date: Sun, 26 Mar 1995 16:38:15 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 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). When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Jens Brennan Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From mkuznetsov@kiae.su Sun Mar 26 19:28:15 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kiae!mkuznetsov From: mkuznetsov@kiae.su (Marta Kuznetsov) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar26.192815.5942@kiae.su> Date: Sun, 26 Mar 1995 19:28:15 GMT References: <1995Mar26.163815.8279@berkeley.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar26.163815.8279@berkeley.edu>, jbrennan@berkeley.edu (Jens Brennan) 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. -- Marta Kuznetsov *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From tlaurent@utexas.edu Tue Mar 28 22:47:15 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!tlaurent From: tlaurent@utexas.edu (Tobias Laurent) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar28.224715.8964@utexas.edu> Date: Tue, 28 Mar 1995 22:47:15 GMT References: <1995Mar26.163815.8279@berkeley.edu> <1995Mar26.192815.5942@kiae.su> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Mar26.192815.5942@kiae.su>, mkuznetsov@kiae.su (Marta Kuznetsov) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Tobias Laurent US Robotics Courier V.34 @ 14,400 bps "Marcus is not one man." From ifournier@illinois.edu Thu Mar 30 04:27:15 1995 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!ifournier From: ifournier@illinois.edu (Ines Fournier) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar30.042715.5230@illinois.edu> Date: Thu, 30 Mar 1995 04:27:15 GMT References: <1995Mar26.163815.8279@berkeley.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar26.163815.8279@berkeley.edu>, jbrennan@berkeley.edu (Jens Brennan) 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. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Ines Fournier | ifournier@illinois.edu PGP Key fingerprint: 2191 B953 3EB3 3A3C "Keep the channels open." From lnakamura@cmu.edu Fri Mar 31 13:34:15 1995 Path: ashpoly!cascade!bigsur!cmu!lnakamura From: lnakamura@cmu.edu (Lisa Nakamura) Newsgroups: comp.dsp Subject: Re: Data: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar31.133415.2232@cmu.edu> Date: Fri, 31 Mar 1995 13:34:15 GMT References: <1995Mar26.163815.8279@berkeley.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar26.163815.8279@berkeley.edu>, jbrennan@berkeley.edu (Jens Brennan) 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. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Lisa Nakamura Tape trading list upon request. SASE required for international mail.