TY - GEN
T1 - Inertially aided vector matching for opportunistic navigation in space
AU - Runnels, Joel
AU - Gebre-Egziabher, Demoz
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this work, an estimator is developed for the joint estimation of orientation and position from astrophysical signals of opportunity, particularly pulsars. The filter is based on a combination of vector-matching techniques for estimating attitude and time-difference of arrival navigation for estimating position. The filter functions by computing the probability of association for each arriving photon with each signal source of interest, and using the association probabilities to perform the measurement update. The probability of association of a photon with a signal source is derived, as well as the probability of association with background. The estimation techniques proposed are tested using Monte Carlo analysis techniques. The accuracy of the resulting estimates is compared to other pulsar navigation techniques. The results of the simulation studies indicate that the technique proposed here generally outperforms other time difference of arrival estimation techniques.
AB - In this work, an estimator is developed for the joint estimation of orientation and position from astrophysical signals of opportunity, particularly pulsars. The filter is based on a combination of vector-matching techniques for estimating attitude and time-difference of arrival navigation for estimating position. The filter functions by computing the probability of association for each arriving photon with each signal source of interest, and using the association probabilities to perform the measurement update. The probability of association of a photon with a signal source is derived, as well as the probability of association with background. The estimation techniques proposed are tested using Monte Carlo analysis techniques. The accuracy of the resulting estimates is compared to other pulsar navigation techniques. The results of the simulation studies indicate that the technique proposed here generally outperforms other time difference of arrival estimation techniques.
KW - Data association
KW - Opportunistic navigation
UR - http://www.scopus.com/inward/record.url?scp=85051471945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051471945&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85051471945
SN - 9781510855373
T3 - Proceedings of the International Astronautical Congress, IAC
SP - 4944
EP - 4958
BT - 68th International Astronautical Congress, IAC 2017
PB - International Astronautical Federation, IAF
T2 - 68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017
Y2 - 25 September 2017 through 29 September 2017
ER -