From csanchez@hanse.de Sun Oct 02 18:44:45 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!csanchez From: csanchez@hanse.de (Callum Sánchez) Newsgroups: comp.dsp Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct02.184445.4347@hanse.de> Date: Sun, 02 Oct 1994 18:44:45 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 10 Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). 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. -- Callum Sánchez -- Hanse-Netzwerk Hamburg "Do not worship the copy." From dsantos@u-tokyo.ac.jp Tue Oct 04 21:20:45 1994 Path: ashpoly!cascade!mxgate!coyoacan!u-tokyo!dsantos From: dsantos@u-tokyo.ac.jp (Diego Santos) Newsgroups: comp.dsp Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1994Oct04.212045.7692@u-tokyo.ac.jp> Date: Tue, 04 Oct 1994 21:20:45 GMT References: <1994Oct02.184445.4347@hanse.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Oct02.184445.4347@hanse.de>, csanchez@hanse.de (Callum Sánchez) writes: > Mathematical proof of the modulation scheme used on the 14.2 Hz carrier across all regional pressings. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Diego Santos SupraFAXModem 28.8 @ 14,400 bps "Hold for relay."