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From: kitagawa@will.ntt.jp (Masahiro Kitagawa)
Newsgroups: sci.electronics,rec.ham-radio
Subject: Re: morse code
Message-ID: <13605@will.ntt.JP>
Date: 25 Dec 90 13:23:31 GMT
References: <1990Dec12.231058.23895@engin.umich.edu>
	<1990Dec14.012315.7858@zoo.toronto.edu> <516@aupair.cs.athabascau.ca>
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In-reply-to: lyndon@cs.athabascau.ca's message of 17 Dec 90 18:12:45 GMT

CW/Morse-code itself may not be so interesting as a modulation/coding
technique any more. But how experienced operators decode morse-code is
very interesting.

After operating CW intensively in those contests, every hiss sound is
decoded as Morse-code for me. Even wind seems calling like 'DE ....'. 
This symptom continues almost for a day, until I get enough sleep. My
ear/nerve/brain system seems over adaptive to morse-code :-) Some kind
of matched filter must be formed in my brain. Or it has been already
built in my brain after years of over dose to CW. (addictive) And a
hour of intensive operation may activate it.

As a little bit old-fashioned ham operator, I like CW very much.

As a scientist, I am very much interested in how human brain is
adapted to CW/Morse-code. (Though I am amature in neuro science.)

As an engineer, I want to emulate CW decoding mechanism of human brain
by electronics such as DSP, neural network, software, ... 
Interesting enough !

As someone pointed at, CW is like bicycle. Both are easy for human,
but very difficult for machine to manipulate. Is there already a robot
which can ride bicycle very well ?

masa

*--- **** ***-- *--* *-* *-*
Masahiro Kitagawa	(JH3PRR)
NTT Research Labs. Tokyo Japan
kitagawa@will.ntt.jp