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HG1120-Slide5

All IMUs drift over time, regardless of quality. A navigation system cannot rely solely on IMU information over long periods of time. It must rely on external measurements to correct for the changes in IMU errors. The most common external measurement for navigation is a Global Navigation Satellite System (GNSS). GPS, GLONASS, Galileo and Baidu are all examples of GNSS.

PTM Published on: 2019-01-07