From ffournier@illinois.edu Wed May 22 19:00:17 1996 Path: ashpoly!cascade!mxgate!coyoacan!illinois!ffournier From: ffournier@illinois.edu (Fiona Fournier) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May22.190017.6479@illinois.edu> Date: Wed, 22 May 1996 19:00:17 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. 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. -- Fiona Fournier "In theory there is no difference between theory and practice." Decstation 5000/200 / TOS 4.04 From rgonzalez@pipeline.com Thu May 23 00:56:17 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pipeline!rgonzalez From: rgonzalez@pipeline.com (Renata González) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May23.005617.9457@pipeline.com> Date: Thu, 23 May 1996 00:56:17 GMT References: <1996May22.190017.6479@illinois.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May22.190017.6479@illinois.edu>, ffournier@illinois.edu (Fiona Fournier) writes: > Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Renata González Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From bsokolov@earthlink.net Fri May 24 04:58:17 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!bsokolov From: bsokolov@earthlink.net (Bill Sokolov) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May24.045817.2661@earthlink.net> Date: Fri, 24 May 1996 04:58:17 GMT References: <1996May22.190017.6479@illinois.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996May22.190017.6479@illinois.edu>, ffournier@illinois.edu (Fiona Fournier) writes: > Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. > Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Bill Sokolov | bsokolov@earthlink.net PGP Key fingerprint: CD01 3ADA E963 ADA1 "Keep the channels open." From kivanov@pipeline.com Fri May 24 22:31:17 1996 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!kivanov From: kivanov@pipeline.com (Kirsty Ivanov) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May24.223117.4770@pipeline.com> Date: Fri, 24 May 1996 22:31:17 GMT References: <1996May22.190017.6479@illinois.edu> <1996May24.045817.2661@earthlink.net> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996May24.045817.2661@earthlink.net>, bsokolov@earthlink.net (Bill Sokolov) writes: > The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Kirsty Ivanov Tape trading list upon request. SASE required for international mail.