From spark@pacbell.net Tue Aug 08 14:02:56 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!spark From: spark@pacbell.net (Steve Park) Newsgroups: comp.dsp Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug08.140256.1193@pacbell.net> Date: Tue, 08 Aug 1995 14:02:56 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 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'. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Steve Park *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From ioliveira@kth.se Thu Aug 10 18:02:56 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!ioliveira From: ioliveira@kth.se (Ines Oliveira) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug10.180256.5715@kth.se> Date: Thu, 10 Aug 1995 18:02:56 GMT References: <1995Aug08.140256.1193@pacbell.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Aug08.140256.1193@pacbell.net>, spark@pacbell.net (Steve Park) 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'. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Ines Oliveira | ioliveira@kth.se PGP Key fingerprint: B977 5A8F DA2A 5752 "Keep the channels open."