From mtanaka@cern.ch Thu Jun 16 10:37:53 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!mtanaka From: mtanaka@cern.ch (Morag Tanaka) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Jun16.103753.6083@cern.ch> Date: Thu, 16 Jun 1994 10:37:53 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Morag Tanaka | mtanaka@cern.ch PGP Key fingerprint: C901 45E4 87F5 9F9E "Keep the channels open." From rhernandez@berkeley.edu Thu Jun 16 16:41:53 1994 Path: ashpoly!cascade!transat!ukc!fennimore!berkeley!rhernandez From: rhernandez@berkeley.edu (Renata Hernández) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Jun16.164153.4805@berkeley.edu> Date: Thu, 16 Jun 1994 16:41:53 GMT References: <1994Jun16.103753.6083@cern.ch> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1994Jun16.103753.6083@cern.ch>, mtanaka@cern.ch (Morag Tanaka) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > 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! If you are posting from AOL, please read RFC 1036 before posting again. -- Renata Hernández "Marcus is not one man." Pentium 90 (OS/2 Warp) / AmigaOS 3.1