TY - GEN

T1 - Space object area-to-mass ratio estimation using multiple model approaches

AU - Linares, Richard

AU - Jah, Moriba K.

AU - Crassidis, John L.

PY - 2012

Y1 - 2012

N2 - In this paper two multiple model approaches are applied to estimate the effective area-to-mass ratio of a space object. Both multiple-model adaptive estimation and a new approach called adaptive likelihood mixtures are used in this work. Multiple model approaches have been used extensively used in target tracking applications since they can detect abrupt changes in the models governing the target's motion. Since the area-to-mass ratio is a function of the projected Sun facing area, which is a function of the orientation of the space object, then the effective area-to-mass ratio is time varying. It is difficult to estimate the time varying nature of the area-to-mass ratio using traditional estimators. Therefore multiple model approaches are proposed here. Simulation results are shown for different scenarios and good performance is given to determine the effective area-to-mass ratios as, well as their changes over time.

AB - In this paper two multiple model approaches are applied to estimate the effective area-to-mass ratio of a space object. Both multiple-model adaptive estimation and a new approach called adaptive likelihood mixtures are used in this work. Multiple model approaches have been used extensively used in target tracking applications since they can detect abrupt changes in the models governing the target's motion. Since the area-to-mass ratio is a function of the projected Sun facing area, which is a function of the orientation of the space object, then the effective area-to-mass ratio is time varying. It is difficult to estimate the time varying nature of the area-to-mass ratio using traditional estimators. Therefore multiple model approaches are proposed here. Simulation results are shown for different scenarios and good performance is given to determine the effective area-to-mass ratios as, well as their changes over time.

UR - http://www.scopus.com/inward/record.url?scp=84874903629&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874903629&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84874903629

SN - 9780877035855

T3 - Advances in the Astronautical Sciences

SP - 55

EP - 72

BT - Guidance and Control 2012 - Advances in the Astronautical Sciences

T2 - 35th Annual AAS Rocky Mountain Section Guidance and Control Conference

Y2 - 3 February 2012 through 8 February 2012

ER -