Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

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

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: MULDAR ? an early 50's project - Ever heard of it?
Posted: Mon Nov 16, 2009 11:51 am 
 
Captain
User avatar

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 ?


 
   
 
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Jul 13, 2010 5:27 pm 
 
Captain
User avatar

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.


 
   
 
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Jul 13, 2010 6:02 pm 
 
Captain
User avatar

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,


 
   
 
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Tue Sep 28, 2010 9:58 am 
 
Captain
User avatar

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


 
   
 
 Post subject: Re: MULDAR ? an early 50's project - Ever heard of it?
Posted: Fri Nov 05, 2010 9:38 am 
 
Captain
User avatar

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
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website