5 Breakthrough DARPA Technologies Beyond GPS - InformationWeek

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5 Breakthrough DARPA Technologies Beyond GPS
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User Rank: Apprentice
8/8/2014 | 11:26:48 AM
DARPA Grand Challenge developed several non-GPS technologies
For ground based vehicles, DARPA might want to look into  Palos Verdes High Schools technology called the "Ground Mouse" that used a ground facing camera that processed 60 frames/second and combined with Laser Radar and Gyro signals to navigate the desert outside of Barstow for the first two Grand Challenges events.  The idea was stop looking to the sky [for GPS signals that could be disrupted] when ground based vehicle are always on the ground.  Perhaps we are looking the wrong way, look down DARPA :-)
User Rank: Ninja
8/8/2014 | 10:20:51 AM
Re: GRAVITY PROBE B might also be polled as an independent, external reference node
It is amazing that DARPA continues to be the leader of new technology. Such innovations will sure enter the market and change the way we live the same way the Internet did.  An atomic clock. I have never heard of something like that before.
User Rank: Apprentice
8/8/2014 | 4:31:26 AM
GRAVITY PROBE B might also be polled as an independent, external reference node
GRAVITY PROBE B might also be polled as an independent, external reference node.
User Rank: Apprentice
8/8/2014 | 4:22:52 AM
Technologies Beyond GPS
PROJECT EGG-DROP:  An orbital reference lab which uses various extraterrestrial references (Siderial Guide Stars, Lunar Reflectors, Earth reflectors, Corner Prisms, etc.) and various atomic clocks and precision inertial platforms in order to "PUBLISH" a PERIODIC EXTERNAL REFERENCE STANDARD UPDATE, via NAVIGABLE RE-ENTRY PUCKS (which may be very small).  ... These pucks are recovered and physically interrogated (high reliability data link) to correct any drift in roving reference master platforms (highest precision internal SINS). ... (lowest drift master platforms).

... The TERRESTRIAL ROVING REFERENCE STANDARDS PLATFORMS would transmit reference standards updates via X-RAY PACKET SWITCHING NETWORK ... This would be multiplexed, multi-frequency, redundant packet routing and could even be received under dense foliage.

A puck could navigate (via controlled re-entry) to a specific drop zone, as often as required (daily?) ...   A naval vessel (ship or sub) would recover the reference puck (the "egg") ... The ship would transmit the reference update to a UAV or LTA platform, which would transmit reference standards updates to lower precision systems, units,  and platforms.

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