TY - GEN
T1 - Improved starting points for heuristic searches in time-optimal slew-maneuver problems
AU - Melton, Robert G.
PY - 2014
Y1 - 2014
N2 - Two methods, Latin hypercube selection and Sobol sequences, are considered for gen-erating a starting point in the search space for a time-optimal, constrained slew maneuver, with the starting point then being used in a heuristic search algorithm. Both methods provide faster early progress, as compared to an initial point generated using random num-bers with a uniform probability distribution. Covariance Matrix Adaptation-Evolutionary Strategy is employed for the search, which is terminated after a fixed number of genera-tions. The resulting partially-converged solutions are kinematically feasible, making them useful either as initial guesses for subsequent, more rigorous searches or as approximate stand-alone solutions.
AB - Two methods, Latin hypercube selection and Sobol sequences, are considered for gen-erating a starting point in the search space for a time-optimal, constrained slew maneuver, with the starting point then being used in a heuristic search algorithm. Both methods provide faster early progress, as compared to an initial point generated using random num-bers with a uniform probability distribution. Covariance Matrix Adaptation-Evolutionary Strategy is employed for the search, which is terminated after a fixed number of genera-tions. The resulting partially-converged solutions are kinematically feasible, making them useful either as initial guesses for subsequent, more rigorous searches or as approximate stand-alone solutions.
UR - http://www.scopus.com/inward/record.url?scp=85087191052&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85087191052&partnerID=8YFLogxK
U2 - 10.2514/6.2014-4298
DO - 10.2514/6.2014-4298
M3 - Conference contribution
AN - SCOPUS:85087191052
SN - 9781624103087
T3 - AIAA/AAS Astrodynamics Specialist Conference 2014
BT - AIAA/AAS Astrodynamics Specialist Conference 2014
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - AIAA/AAS Astrodynamics Specialist Conference 2014
Y2 - 4 August 2014 through 7 August 2014
ER -