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The use of natural signals for localization and navigation with application to centimeter sized UAVs | IEEE Conference Publication | IEEE Xplore
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The use of natural signals for localization and navigation with application to centimeter sized UAVs


Abstract:

The vectors of the local geomagnetic field, the direction of the sun at the time, and acceleration due to gravity constitute a unique natural frame of reference at any po...Show More

Abstract:

The vectors of the local geomagnetic field, the direction of the sun at the time, and acceleration due to gravity constitute a unique natural frame of reference at any point on earth. A combination of 3-axis magnetometer, CMOS array, and accelerometers-all in the realm of a few grams can measure these quantities. We show that measurement of these quantities at sufficient resolution uniquely identifies a location on the earth at a particular time. For night-time flying, the angle to the sun can be replaced by angles to the moon or specific stars. Point-to-point navigation can be attained through simply supplying waypoints in terms of these vectors. We calculate the accuracy of localization and orientation, as a function of sensor resolution. We find that sensor accuracy needed for localization and orientation is not far from available technology.
Date of Conference: 30 June 2010 - 02 July 2010
Date Added to IEEE Xplore: 29 July 2010
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Conference Location: Baltimore, MD, USA
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