"DARPA is also researching new technologies that could make real-time tracking possible through a..."

“DARPA is also researching new technologies that could make real-time tracking possible through a number of sources. DARPA is developing sensors that “use signals of opportunity” such as television, radio, cell towers, satellites, and even lightning, for real-time tracking. The effort, called ASPN (All Source Positioning and Navigation) alleviates issues related to fixing locations in buildings, deep foliage, underwater or underground, where GPS access can be limited.”



- Goodbye GPS? DARPA preparing alternative position-tracking technology | PCWorld (via slavin)

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