Trimble Inc.
VEHICLE NAVIGATION BY DEAD RECKONING AND GNSS-AIDED MAP-MATCHING

Abstract:

Dead reckoning combined with GNSS-aided map-matching improves accuracy and reliability of vehicle navigation. A map-match navigation module in a handheld device sends map-match feedback messages to a vehicle state estimator via a port. The module also accepts vehicle speed and inertial navigation data from sensors mounted in the vehicle.