From dsato@pipeline.com Tue Sep 17 19:35:07 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pipeline!dsato From: dsato@pipeline.com (Dmitri Sato) Newsgroups: comp.dsp Subject: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep17.193507.4700@pipeline.com> Date: Tue, 17 Sep 1996 19:35:07 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 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. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- === Dmitri Sato === Dept of Electrical Engineering, The Pipeline Internet Network "A soul is not exclusive to biology." From bhernandez@unam.mx Thu Sep 19 11:24:07 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!bhernandez From: bhernandez@unam.mx (Bill Hernández) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep19.112407.5728@unam.mx> Date: Thu, 19 Sep 1996 11:24:07 GMT References: <1996Sep17.193507.4700@pipeline.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Sep17.193507.4700@pipeline.com>, dsato@pipeline.com (Dmitri Sato) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Bill Hernández Opinions expressed are solely my own and not those of Universidad Nacional Autónoma de México (DGSCA). ------------------------------------------------------------ From hmartinez@rwth-aachen.de Fri Sep 20 05:46:07 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!hmartinez From: hmartinez@rwth-aachen.de (Hugo Martínez) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep20.054607.8703@rwth-aachen.de> Date: Fri, 20 Sep 1996 05:46:07 GMT References: <1996Sep17.193507.4700@pipeline.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Sep17.193507.4700@pipeline.com>, dsato@pipeline.com (Dmitri Sato) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Hugo Martínez "In theory there is no difference between theory and practice." Sun SparcStation 20 / AmigaOS 3.1 From blindqvist@inria.fr Sat Sep 21 13:18:07 1996 Path: ashpoly!cascade!transat!ukc!fennimore!inria!blindqvist From: blindqvist@inria.fr (Bruno Lindqvist) Newsgroups: comp.dsp Subject: Re: Observation: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Sep21.131807.2480@inria.fr> Date: Sat, 21 Sep 1996 13:18:07 GMT References: <1996Sep17.193507.4700@pipeline.com> <1996Sep19.112407.5728@unam.mx> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Sep19.112407.5728@unam.mx>, bhernandez@unam.mx (Bill Hernández) writes: > The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Bruno Lindqvist "The carrier frequency does not drift by accident." Decstation 5000/200 / SunOS 4.1.4