TY - GEN
T1 - Constrained time-optimal slewing maneuvers for rigid spacecraft
AU - Melton, Robert G.
PY - 2010
Y1 - 2010
N2 - Time-optimal slewing for orbiting astronomical observatories such as the Swift gamma-ray burst detector and observatory must include constraints to protect delicate optical sensors from accidental exposure to high-intensity sources such as the Sun, Earth and Moon. This paper considers the problem of slewing a spacecraft in minimum time in order to align an onboard telescope with a particular target, with one or more path-constraints that maintain a minimum angular distance between the optical sensor axis and the high-intensity sources. The problem is solved via a pseudospectral method, with solutions showing a relatively simple control-switching structure.
AB - Time-optimal slewing for orbiting astronomical observatories such as the Swift gamma-ray burst detector and observatory must include constraints to protect delicate optical sensors from accidental exposure to high-intensity sources such as the Sun, Earth and Moon. This paper considers the problem of slewing a spacecraft in minimum time in order to align an onboard telescope with a particular target, with one or more path-constraints that maintain a minimum angular distance between the optical sensor axis and the high-intensity sources. The problem is solved via a pseudospectral method, with solutions showing a relatively simple control-switching structure.
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M3 - Conference contribution
AN - SCOPUS:79959935775
SN - 9780877035572
T3 - Advances in the Astronautical Sciences
SP - 107
EP - 126
BT - Astrodynamics 2009 - Advances in the Astronautical Sciences
T2 - AAS/AIAA Astrodynamics Specialist Conference
Y2 - 9 August 2009 through 13 August 2009
ER -