Relative Navigation for Satellites in Close Proximity Using Angles-Only Observations

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PatelH-8900.pdf (484.22 KB)
Author(s)
Patel, Hemanshu
Advisor(s)
Lovell, T. Alan
Russell, Ryan
Sinclair, Andrew
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Organizational Unit
Organizational Unit
Daniel Guggenheim School of Aerospace Engineering
The Daniel Guggenheim School of Aeronautics was established in 1931, with a name change in 1962 to the School of Aerospace Engineering
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https://hdl.handle.net/1853/73557
Abstract
Relative navigation using angles-only observations is explored in this research. Previous work has shown that the unique relative orbit of a deputy satellite cannot be found using angles-only camera measurements from the chief satellite when a linear model of relative motion is used, due to a lack of observability. This work examines the possibility of partial observability in this case, which consists of a basis vector that corresponds to a family of relative orbits. A Preliminary Orbit Determination (POD) method is introduced that uses 3 Line-Of-Sight (LOS) measurements and provides an initial guess for the basis vector. This guess is differentially corrected with a batch filter that takes in a full set of LOS measurements to hone in on a converged solution for the basis vector. The application of an Extended Kalman Filter (EKF) to this problem is also explored.
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Date
2011-12-01
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Text
Resource Subtype
Masters Project
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