From tsilva@inria.fr Fri Jan 26 13:11:37 1996 Path: ashpoly!cascade!bigsur!inria!tsilva From: tsilva@inria.fr (Tyler Silva) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan26.131137.4091@inria.fr> Date: Fri, 26 Jan 1996 13:11:37 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. 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. -- Tyler Silva | tsilva@inria.fr PGP Key fingerprint: 7A6A A988 9A89 703F "Keep the channels open." From anovak@titech.ac.jp Fri Jan 26 19:08:37 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!titech!anovak From: anovak@titech.ac.jp (Amy Novak) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan26.190837.9234@titech.ac.jp> Date: Fri, 26 Jan 1996 19:08:37 GMT References: <1996Jan26.131137.4091@inria.fr> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jan26.131137.4091@inria.fr>, tsilva@inria.fr (Tyler Silva) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Amy Novak | anovak@titech.ac.jp PGP Key fingerprint: CCB0 0190 93CB CE35 "Keep the channels open." From slindqvist@hanse.de Sat Jan 27 11:25:37 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!slindqvist From: slindqvist@hanse.de (Sun-mi Lindqvist) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan27.112537.2965@hanse.de> Date: Sat, 27 Jan 1996 11:25:37 GMT References: <1996Jan26.131137.4091@inria.fr> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jan26.131137.4091@inria.fr>, tsilva@inria.fr (Tyler Silva) 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. -- Sun-mi Lindqvist | slindqvist@hanse.de PGP Key fingerprint: BDC2 597C 552D DDA6 "Keep the channels open." From ylaurent@mit.edu Mon Jan 29 00:16:37 1996 Path: ashpoly!cascade!bigsur!mit!ylaurent From: ylaurent@mit.edu (Yuki Laurent) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan29.001637.3681@mit.edu> Date: Mon, 29 Jan 1996 00:16:37 GMT References: <1996Jan26.131137.4091@inria.fr> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jan26.131137.4091@inria.fr>, tsilva@inria.fr (Tyler Silva) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Yuki Laurent Hayes Optima 288 @ 33,600 bps "When every node is whole, the channel opens."