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MULDAR ? an early 50's project - Ever heard of it? - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam. Note: The RF Cafe Forums were reconstituted in April 2021!

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wb9jtk
 Post subject: MULDAR ? an early 50's project - Ever heard of it?
Posted: Mon Nov 16, 2009 11:51 am 
 
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Joined: Tue Dec 26, 2006 5:39 pm
Posts: 21
I don't know when it started, but it was being worked on in early 1951. I do not know if it was an acronym or a project name, but it was always all-capital letters. Has anyone here ever heard of MULDAR ?


 
   
 
wb9jtk
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Jul 13, 2010 5:27 pm 
 
Captain
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Joined: Tue Dec 26, 2006 5:39 pm
Posts: 21
aha ! Just de-classified....
This is, I infer, related to the Bedford Experiments (Cape Cod Experiments) to use Whirlwind computer to track invading aircraft. Page 2 mentions a suspension in experiments due to engine trouble of the B-25 in which the airborne equipment is located., mentions interuption because an F-51 was sent for repairs. Also talks about sending 3 sets of radar data per phone line.

1 February 1952
Memorandum M-1389
Digital Computer Laboratory
M.I.T.
http://dome.mit.edu/bitstream/handle/1721.3/39384/MC665_r06_M-1389.pdfhttp://dome.mit.edu/bitstream/handle/1721.3/39384/MC665_r06_M-1389.pdf page 7.

An outline has been written up for a set of programs which will allow us to test parts of the Cape Cod Muldar Program before the magnetic drum equipment arrives from E.R.A. The proposal is to record on magnetic tape blocks of filtered radar data from 1, 2, or 3 radar sets. The computer would carry out the necessary filtering and recording operations. A second program would then be read into the computer which would process the radar data on the magnetic tape, a block at a time. In this way, the processing program could be completely7 divorced from real time, allowing us a great deal of flexibility in testing various information processing methods.


 
   
 
wb9jtk
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Jul 13, 2010 6:02 pm 
 
Captain
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Joined: Tue Dec 26, 2006 5:39 pm
Posts: 21
And now that I know what terms to search on, this de-classified document explains it all....


Quote:
Muldar System. Clutter Elimination by the Use of Narrow Band Video plus Frame to Frame Storage and Filtering at the Central Point; Harrington, J. V., September 28, 1951,


 
   
 
Jessica
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Sep 28, 2010 9:58 am 
 
Captain
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Joined: Thu Oct 12, 2006 7:50 am
Posts: 5
Very interesting, but what on earth caused you to search for information on the Muldar system? Now that you know, what will you do with it? Are you writing a book?

BTW, what does Muldar stand for? Is it a person's name, or some acronym where the "dar" part is from "radar?"

_________________
Thanks,
Jess


 
   
 
wb9jtk
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Fri Nov 05, 2010 9:38 am 
 
Captain
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Joined: Tue Dec 26, 2006 5:39 pm
Posts: 21
I am doing research for a book. I am going through notebooks of Dudley Allen Buck who died in 1959 at age 32.

His public image was that he worked developing computer components, including the cryotron. However he was doing much more interesting stuff than just computer components. Going through documents we find that as a consultant to the N.S.A. he was working with some pretty interesting people.

One of the names in his notebook was located and I had a discussion with him. His first job for the NSA was trying to fix a distribution system for the clock in a 3 MHz computer in 1952. A time when 'fast' computers used a clock of one or two hundred kilohertz. I am finding other very interesting things.

I am surprised how much of this stuff is STILL classified for national security.






Posted  11/12/2012
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