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A comment on Drones that can haul a 20-pound load for 500 miles and land on a moving target. Parent comment

Re:Drones that can haul a 20-pound load for 500 miles and la... by a012 on Sunday May 27, 2018 @03:31AM (#17165916)
I'm no expert but how autonomous works if there's no positioning methods involved? (To avoid GPS/GLONASS,... Jamming)
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Re:Drones that can haul a 20-pound load for 500 miles and la... by microcolonel on Sunday May 27, 2018 @03:34AM (#17165920)
Fused dead reckoning can work, especially if you mix camera and IMU (or more than one IMU!).
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Re:Drones that can haul a 20-pound load for 500 miles and la... by tfolbrecht on Sunday May 27, 2018 @08:13AM (#17166584)
Surprised nobodies mentioned celestial sensors.

Celestial navigation by imaging the sky, and combining that data with a clock and compass.

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Re:Drones that can haul a 20-pound load for 500 miles and la... by varjag on Sunday May 27, 2018 @09:38AM (#17166841)
Very unreliable for ground based systems.
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Re:Drones that can haul a 20-pound load for 500 miles and la... by pjc50 on Sunday May 27, 2018 @04:59AM (#17166120)
Cruise missiles have an optical terrain-following system, that would be a viable approach for drones.
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Re:Drones that can haul a 20-pound load for 500 miles and la... by kevin_thibedeau on Sunday May 27, 2018 @03:30PM (#17168672)
They use radar.

https://en.m.wikipedia.org/wiki/TERCOM

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Re:Drones that can haul a 20-pound load for 500 miles and la... by fulafel on Sunday May 27, 2018 @10:31AM (#17166992)
Another technique not mentioned yet: compss augmented with local magnetic field features.
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Re:Drones that can haul a 20-pound load for 500 miles and la... by omegant on Sunday May 27, 2018 @05:09AM (#17166145)
Inertial navigation and maps.
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Re:Drones that can haul a 20-pound load for 500 miles and la... by candiodari on Sunday May 27, 2018 @03:59AM (#17165981)
See the paper, but TLDR: stereo video depth sensing combined with fading previous measurements (so if you detected an obstacle at 1 o'clock, 2 meters out 1 second ago, it is now very likely at 2 o'clock, 1.3 meters out. This way you can limit yourself to just detecting things 2 meters out)
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