From kreyes@illinois.edu Wed Oct 25 10:52:14 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!kreyes
From: kreyes@illinois.edu (Kenji Reyes)
Newsgroups: comp.dsp
Subject: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Oct25.105214.3978@illinois.edu>
Date: Wed, 25 Oct 1995 10:52:14 GMT
Organization: University of Illinois Urbana-Champaign
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How the 14 ASCII characters per node are encoded into the record groove.

Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'.
The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20).

When all 14 rows are assembled, the matrix forms an 80-column ASCII status report.

-- 
=== Kenji Reyes ===
Dept of Electrical Engineering, University of Illinois Urbana-Champaign
"We don't sign stars. We build them."

From ireyes@pacbell.net Fri Oct 27 01:19:14 1995
Path: ashpoly!cascade!mxgate!coyoacan!pacbell!ireyes
From: ireyes@pacbell.net (Ines Reyes)
Newsgroups: comp.dsp
Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Oct27.011914.8829@pacbell.net>
Date: Fri, 27 Oct 1995 01:19:14 GMT
References: <1995Oct25.105214.3978@illinois.edu>
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In article <1995Oct25.105214.3978@illinois.edu>, kreyes@illinois.edu (Kenji Reyes) writes:
> How the 14 ASCII characters per node are encoded into the record groove.

Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame.

-- 
Ines Reyes
Opinions expressed are solely my own and not those of Pacific Bell Internet Services.
------------------------------------------------------------

From gchoi@stanford.edu Sat Oct 28 08:15:14 1995
Path: ashpoly!cascade!transat!ukc!fennimore!stanford!gchoi
From: gchoi@stanford.edu (Graham Choi)
Newsgroups: comp.dsp
Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Oct28.081514.1023@stanford.edu>
Date: Sat, 28 Oct 1995 08:15:14 GMT
References: <1995Oct25.105214.3978@illinois.edu>
Organization: Stanford University Computer Systems Lab
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In article <1995Oct25.105214.3978@illinois.edu>, kreyes@illinois.edu (Kenji Reyes) writes:
> How the 14 ASCII characters per node are encoded into the record groove.
> Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'.

On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text.

Top-posters will be placed in my ~/.killfile without notice.

-- 
=== Graham Choi ===
Dept of Electrical Engineering, Stanford University Computer Systems Lab
"Do not worship the copy."

From ksokolov@u-tokyo.ac.jp Mon Oct 30 04:28:14 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!u-tokyo!ksokolov
From: ksokolov@u-tokyo.ac.jp (Kenji Sokolov)
Newsgroups: comp.dsp
Subject: Re: Discussion: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Oct30.042814.6268@u-tokyo.ac.jp>
Date: Mon, 30 Oct 1995 04:28:14 GMT
References: <1995Oct25.105214.3978@illinois.edu> <1995Oct28.081514.1023@stanford.edu>
Organization: University of Tokyo Department of Information Science
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In article <1995Oct28.081514.1023@stanford.edu>, gchoi@stanford.edu (Graham Choi) writes:
> On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text.

Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame.

-- 
Kenji Sokolov
Tape trading list upon request. SASE required for international mail.