Package org.orekit.utils
Class MultipleShooter
- java.lang.Object
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- org.orekit.utils.AbstractMultipleShooting
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- org.orekit.utils.MultipleShooter
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- All Implemented Interfaces:
MultipleShooting
public class MultipleShooter extends AbstractMultipleShooting
Multiple shooting method applicable for trajectories, in an ephemeris model. Not suited for closed orbits.- Since:
- 10.2
- Author:
- William Desprats
- See Also:
- "TRAJECTORY DESIGN AND ORBIT MAINTENANCE STRATEGIES IN MULTI-BODY DYNAMICAL REGIMES by Thomas A. Pavlak, Purdue University"
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Constructor Summary
Constructors Constructor Description MultipleShooter(List<SpacecraftState> initialGuessList, List<NumericalPropagator> propagatorList, List<AdditionalEquations> additionalEquations, double arcDuration, double tolerance)
Deprecated.as of 11.1, replaced byMultipleShooter(List, List, List, double, double, int)
MultipleShooter(List<SpacecraftState> initialGuessList, List<NumericalPropagator> propagatorList, List<EpochDerivativesEquations> epochEquations, double arcDuration, double tolerance, int maxIter)
Simple Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected double[]
computeAdditionalConstraints(List<SpacecraftState> propagatedSP)
Compute the additional constraints.protected double[][]
computeAdditionalJacobianMatrix(List<SpacecraftState> propagatedSP)
Compute a part of the Jacobian matrix from additional constraints.protected SpacecraftState
getAugmentedInitialState(int i)
Compute the additional state from the additionalEquations.-
Methods inherited from class org.orekit.utils.AbstractMultipleShooting
addConstraint, compute, computeEpochJacobianMatrix, getAugmentedInitialState, getConstraintsMap, getFreeEpochMap, getFreePatchPointMap, getNumberOfConstraints, getNumberOfFreeEpoch, getNumberOfFreeVariables, getPatchedSpacecraftState, getPatchPoint, getPropagatorList, isClosedOrbit, setClosedOrbitConstraint, setEpochFreedom, setPatchPointComponentFreedom, updateAdditionalConstraints
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Constructor Detail
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MultipleShooter
@Deprecated public MultipleShooter(List<SpacecraftState> initialGuessList, List<NumericalPropagator> propagatorList, List<AdditionalEquations> additionalEquations, double arcDuration, double tolerance)
Deprecated.as of 11.1, replaced byMultipleShooter(List, List, List, double, double, int)
Simple Constructor.Standard constructor for multiple shooting which can be used with the CR3BP model.
- Parameters:
initialGuessList
- initial patch points to be corrected.propagatorList
- list of propagators associated to each patch point.additionalEquations
- list of additional equations linked to propagatorList.arcDuration
- initial guess of the duration of each arc.tolerance
- convergence tolerance on the constraint vector
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MultipleShooter
public MultipleShooter(List<SpacecraftState> initialGuessList, List<NumericalPropagator> propagatorList, List<EpochDerivativesEquations> epochEquations, double arcDuration, double tolerance, int maxIter)
Simple Constructor.Standard constructor for multiple shooting which can be used with the CR3BP model.
- Parameters:
initialGuessList
- initial patch points to be corrected.propagatorList
- list of propagators associated to each patch point.epochEquations
- list of additional derivatives providers linked to propagatorList.arcDuration
- initial guess of the duration of each arc.tolerance
- convergence tolerance on the constraint vectormaxIter
- maximum number of iterations
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Method Detail
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getAugmentedInitialState
protected SpacecraftState getAugmentedInitialState(int i)
Compute the additional state from the additionalEquations.- Overrides:
getAugmentedInitialState
in classAbstractMultipleShooting
- Parameters:
i
- index of the state- Returns:
- augmentedSP SpacecraftState with the additional state within.
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computeAdditionalJacobianMatrix
protected double[][] computeAdditionalJacobianMatrix(List<SpacecraftState> propagatedSP)
Compute a part of the Jacobian matrix from additional constraints.- Specified by:
computeAdditionalJacobianMatrix
in classAbstractMultipleShooting
- Parameters:
propagatedSP
- propagatedSP- Returns:
- jacobianMatrix Jacobian sub-matrix
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computeAdditionalConstraints
protected double[] computeAdditionalConstraints(List<SpacecraftState> propagatedSP)
Compute the additional constraints.- Specified by:
computeAdditionalConstraints
in classAbstractMultipleShooting
- Parameters:
propagatedSP
- propagated SpacecraftState- Returns:
- fxAdditionnal additional constraints
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