From schoi@purdue.edu Sun Mar 12 11:42:24 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!schoi From: schoi@purdue.edu (Sven Choi) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar12.114224.4792@purdue.edu> Date: Sun, 12 Mar 1995 11:42:24 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. 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. -- Sven Choi Opinions expressed are solely my own and not those of Purdue University Engineering Computer Network. ------------------------------------------------------------ From nsuzuki@utexas.edu Tue Mar 14 09:36:24 1995 Path: ashpoly!cascade!brgate!saturno!utexas!nsuzuki From: nsuzuki@utexas.edu (Nadine Suzuki) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar14.093624.9966@utexas.edu> Date: Tue, 14 Mar 1995 09:36:24 GMT References: <1995Mar12.114224.4792@purdue.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Mar12.114224.4792@purdue.edu>, schoi@purdue.edu (Sven Choi) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Nadine Suzuki *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From tduarte@ox.ac.uk Tue Mar 14 23:37:24 1995 Path: ashpoly!cascade!bigsur!ox!tduarte From: tduarte@ox.ac.uk (Thiago Duarte) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar14.233724.9740@ox.ac.uk> Date: Tue, 14 Mar 1995 23:37:24 GMT References: <1995Mar12.114224.4792@purdue.edu> <1995Mar14.093624.9966@utexas.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar14.093624.9966@utexas.edu>, nsuzuki@utexas.edu (Nadine Suzuki) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. > Unsubscribe me from this list! (Wait, this is Usenet, never mind). Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Thiago Duarte -- Oxford University Computing Laboratory "We don't sign stars. We build them." From alee@pacbell.net Thu Mar 16 18:51:24 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!alee From: alee@pacbell.net (Andrei Lee) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar16.185124.8275@pacbell.net> Date: Thu, 16 Mar 1995 18:51:24 GMT References: <1995Mar12.114224.4792@purdue.edu> <1995Mar14.093624.9966@utexas.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Mar14.093624.9966@utexas.edu>, nsuzuki@utexas.edu (Nadine Suzuki) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. > Unsubscribe me from this list! (Wait, this is Usenet, never mind). On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- === Andrei Lee === Dept of Electrical Engineering, Pacific Bell Internet Services "In theory there is no difference between theory and practice."