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System and method of navigation based on state estimation using a stepped filter

Patent image
NRL

Embodiments include systems and methods of navigation. In on embodiment, a plurality of position and motion states of a vehicle are estimated. The states may be estimated based on information received from a satellite receiver and an inertial measurement sensor. Estimating the states comprises performing one or more of a plurality of update steps at the rate that information is received from the satellite receiver. The states are estimated at a rate greater than the rate at which the update steps are performed. In one embodiment, the states are estimated using a stepped extended Kalman filter.

Inventors: 
Kahn, Aaron D.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2009-04-30
Grant Date: 
2013-10-15
Grant time: 
1,629 days
Grant time percentile rank: 
30
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY