Navigation aids for unmanned aerial systems in a GPS-denied environment
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United States of America Patent
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May 12, 2020
Grant Date -
Jan 11, 2018
app pub date -
May 10, 2017
filing date -
Jul 5, 2016
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Abstract
Example navigation aids for increasing the accuracy of a navigation system are disclosed herein. An example method disclosed herein identifying, with an aircraft intent description language (AIDL) aid, an AIDL instruction as associated with a first dynamic activity level of a plurality of dynamic activity levels and determining, with the AIDL aid, an aircraft state to be affected by the AIDL instruction. The example method also includes changing, with a navigation filter, a weighting scheme for a measurement of the aircraft state obtained by an inertial navigation system (INS) of the aircraft and estimating, with the navigation filter, a trajectory of the aircraft based on the weighting scheme and the measurement.
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