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  GPS-Free Positioning (MINT)
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NREC’s wearable tracking system can help you navigate where GPS can’t. Blue line = actual system data. (System tracks left foot.)


NREC is developing MINT (Micro-Inertial Navigation Technology), a wearable navigation and localization aid.

MINT locates a person by keeping track of his or her footsteps.  No satellites or other external references are needed; instead, it uses shoe-mounted, miniaturized radar and inertial measurement units (IMUs). MINT is intended for places where GPS isn’t available: inside buildings, underground, and beneath the tree canopy in forested areas. 

MINT is being developed in cooperation with Carnegie Mellon’s Electrical and Computer Engineering department and is sponsored by DARPA. 

Micro-Inertial Navigation Technology (PDF)

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