Re:US Navy collisions stoke cyber threat concerns
by GreaterFool on Tuesday August 22, 2017 @01:13AM
(#15069885)
I imagine one could make a modern device that tracks position by watching the sky. I wonder how well could that work in bad weather. Is there any light spectrum of the stars that passes through a serious storm? Humans may be incapable of seeing it but how about advanced telescope/camera?
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Re:US Navy collisions stoke cyber threat concerns
by dbenjamin on Tuesday August 22, 2017 @01:19AM
(#15069906)
This has existed for quite a while. The SR-71 (introduced in 1966) had an astro-inertial navigation system that tracked stars to reduce error in a standard INS.
Using spectrum filters, was able to track stars day and night (and I imagine potentially in bad weather).
https://timeandnavigation.si.edu/multimedia-asset/nortronics...