Uncued Satellite Initial Orbit Determination Using Signals of Opportunity
Loading...
Author(s)
Worthy, Johnny L., III
Holzinger, Marcus J.
Advisor(s)
Editor(s)
Collections
Supplementary to:
Permanent Link
Abstract
This paper investigates the application of signal of opportunity based multilateration
to generate initial orbit estimates. Using at least 4 observer stations, the time
differential of arrival of signals of opportunity can be measured and used to determine
a 3D position estimate of the source of the signal with some associated
covariance on the position estimate. While this solution gives the position of the
object, admissible region theory may be applied to bound the possible velocity
states belonging to a particular source. Two constraints are considered and analytically
derived for the time differential of arrival problem to constraint the possible
velocity solutions for a given position estimate. Once a joint admissible region is
formed from these constraints, it may be sampled and used as an initial distribution
for a particle filter. This work shows an example application of particle filter initiation with a time differential of arrival measurement based admissible region.
Sponsor
Date
2015-08
Extent
Resource Type
Text
Resource Subtype
Paper
Rights Statement
Unless otherwise noted, all materials are protected under U.S. Copyright Law and all rights are reserved