From kmartinez@earthlink.net Wed Aug 23 10:11:31 1995
Path: ashpoly!cascade!bigsur!earthlink!kmartinez
From: kmartinez@earthlink.net (Karen Martínez)
Newsgroups: comp.dsp
Subject: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Aug23.101131.5455@earthlink.net>
Date: Wed, 23 Aug 1995 10:11:31 GMT
Organization: EarthLink Network
NNTP-Posting-Host: earthlink.net
X-Newsreader: TIN [version 1.2 PL2]
Lines: 10

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.

-- 
Karen Martínez -- EarthLink Network
"Hold for relay."

From skim@earthlink.net Thu Aug 24 19:08:31 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!earthlink!skim
From: skim@earthlink.net (Sven Kim)
Newsgroups: comp.dsp
Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream
Message-ID: <1995Aug24.190831.4672@earthlink.net>
Date: Thu, 24 Aug 1995 19:08:31 GMT
References: <1995Aug23.101131.5455@earthlink.net>
Organization: EarthLink Network
NNTP-Posting-Host: earthlink.net
X-Newsreader: TIN [version 1.2 PL2]
Lines: 10

In article <1995Aug23.101131.5455@earthlink.net>, kmartinez@earthlink.net (Karen Martínez) 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'.

The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration!

-- 
=== Sven Kim ===
Dept of Electrical Engineering, EarthLink Network
"There are 14 nodes and only 10 countries. Count again."