[SIGCIS-Members] whirlwind, radar and real-time tracking
Guy Fedorkow
guy.fedorkow at gmail.com
Fri Apr 23 13:41:03 PDT 2021
Greetings Colleagues,
I've been working on restoring a 1951 Whirlwind program, written at
MIT, used to demonstrate real-time tracking of aircraft with radar for
the purposes of guiding an interception (the Cold War was in full flight
in the 1950's). This work ultimately led to the massive SAGE air
defense network in the US.
You can see some rather informal preliminary notes on the work at
https://www.historia-mollimercium.com/whirlwind/WW-Track-while-Scan-Draft-Notes-v1.pdf
The program does work in simulation; you can see a four-minute video
of the simulator running an intercept at
https://www.historia-mollimercium.com/whirlwind/Track-while-scan-Apr-23-2021.mp4
Spoiler alerts: The original really did display moving dots on a CRT,
but the graphics are "spartan" to say the least. And nothing in
particular happens when the intercept actually happens.
Would anyone know of contemporaneous work involving digital computers
for either radar tracking or real-time computing around 1951? I think
all the familiar digital computers from those years were used in
applications where batch operation was perfectly acceptable, e.g.,
computing ballistics tables.
Innovations like this rarely occur in a complete vacuum, but I don't
see references to any similar digital computing projects.
If anyone has pointers, do let me know!
Thanks
Guy Fedorkow
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