From ckarlsson@earthlink.net Sat Mar 11 06:01:33 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!ckarlsson From: ckarlsson@earthlink.net (Camila Karlsson) Newsgroups: comp.dsp Subject: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar11.060133.1769@earthlink.net> Date: Sat, 11 Mar 1995 06:01:33 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Camila Karlsson -- EarthLink Network "A soul is not exclusive to biology." From rnilsson@stanford.edu Sun Mar 12 11:30:33 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!stanford!rnilsson From: rnilsson@stanford.edu (Raj Nilsson) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar12.113033.5480@stanford.edu> Date: Sun, 12 Mar 1995 11:30:33 GMT References: <1995Mar11.060133.1769@earthlink.net> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar11.060133.1769@earthlink.net>, ckarlsson@earthlink.net (Camila Karlsson) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Raj Nilsson Tape trading list upon request. SASE required for international mail. From dcampbell@kth.se Mon Mar 13 22:39:33 1995 Path: ashpoly!cascade!brgate!saturno!kth!dcampbell From: dcampbell@kth.se (Dave Campbell) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar13.223933.3094@kth.se> Date: Mon, 13 Mar 1995 22:39:33 GMT References: <1995Mar11.060133.1769@earthlink.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar11.060133.1769@earthlink.net>, ckarlsson@earthlink.net (Camila Karlsson) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. > Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The Golay code confirms Marcus Hale's military background. The Voyager spacecraft and NATO satcom systems use the exact same code. -- Dave Campbell Tape trading list upon request. SASE required for international mail. From ftanaka@kiae.su Wed Mar 15 02:16:33 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kiae!ftanaka From: ftanaka@kiae.su (Freya Tanaka) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Mar15.021633.3751@kiae.su> Date: Wed, 15 Mar 1995 02:16:33 GMT References: <1995Mar11.060133.1769@earthlink.net> <1995Mar12.113033.5480@stanford.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar12.113033.5480@stanford.edu>, rnilsson@stanford.edu (Raj Nilsson) writes: > Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Freya Tanaka Practical Peripherals 14.4 @ 14,400 bps "Tape doesn't lie at 02:14. Ears do."