Package org.orekit.control.indirect.shooting

Class AbstractFixedBoundaryCartesianSingleShooting

java.lang.Object

org.orekit.control.indirect.shooting.AbstractIndirectShooting

org.orekit.control.indirect.shooting.AbstractFixedInitialCartesianSingleShooting

org.orekit.control.indirect.shooting.AbstractFixedBoundaryCartesianSingleShooting

Direct Known Subclasses:

NewtonFixedBoundaryCartesianSingleShooting

public abstract class AbstractFixedBoundaryCartesianSingleShooting
extends AbstractFixedInitialCartesianSingleShooting

Abstract class for indirect single shooting methods with Cartesian coordinates for fixed time fixed boundary. Terminal mass is assumed to be free, thus corresponding adjoint must vanish at terminal time. On the other hand, other terminal adjoint variables are free because the Cartesian state is fixed.

Since:

12.2

Author:

Romain Serra

See Also:

• CartesianAdjointDerivativesProvider
• FieldCartesianAdjointDerivativesProvider

Field Summary

Fields inherited from class org.orekit.control.indirect.shooting.AbstractIndirectShooting

DEFAULT_TOLERANCE_MASS_ADJOINT

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractFixedBoundaryCartesianSingleShooting(ShootingPropagationSettings propagationSettings, FixedTimeBoundaryOrbits boundaryConditions, CartesianBoundaryConditionChecker conditionChecker)	Constructor with boundary conditions as orbits.
protected	AbstractFixedBoundaryCartesianSingleShooting(ShootingPropagationSettings propagationSettings, FixedTimeCartesianBoundaryStates boundaryConditions, CartesianBoundaryConditionChecker conditionChecker)	Constructor with boundary conditions as orbits.

Method Summary

Modifier and Type	Method	Description
protected ShootingBoundaryOutput	computeCandidateSolution(SpacecraftState initialState, int iterationCount)	Form solution container with input initial state.
protected CartesianBoundaryConditionChecker	getConditionChecker()	Getter for the boundary condition checker.
double	getScalePositionDefects()	Getter for scale of position defects.
double	getScaleVelocityDefects()	Getter for scale of velocity defects.
protected TimeStampedPVCoordinates	getTerminalCartesianState()	Getter for the target terminal Cartesian state vector.
void	setScalePositionDefects(double scalePositionDefects)	Setter for scale of position defects.
void	setScaleVelocityDefects(double scaleVelocityDefects)	Setter for scale of velocity defects.
void	setToleranceMassAdjoint(double toleranceMassAdjoint)	Setter for mass adjoint tolerance.

Methods inherited from class org.orekit.control.indirect.shooting.AbstractFixedInitialCartesianSingleShooting

buildFieldODE, buildInternalPropagator, buildPropagator, createFieldInitialStateWithMassAndAdjoint, createFieldState, createInitialStateWithMass, getMaximumIterationCount, getScales, solve, solve, updateShootingVariables

Methods inherited from class org.orekit.control.indirect.shooting.AbstractIndirectShooting

buildBasicPropagator, buildFieldIntegrator, getPropagationSettings

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AbstractFixedBoundaryCartesianSingleShooting

protected AbstractFixedBoundaryCartesianSingleShooting(ShootingPropagationSettings propagationSettings,
 FixedTimeCartesianBoundaryStates boundaryConditions,
 CartesianBoundaryConditionChecker conditionChecker)

Constructor with boundary conditions as orbits.

Parameters:

propagationSettings - propagation settings

boundaryConditions - boundary conditions as FixedTimeCartesianBoundaryStates

conditionChecker - boundary condition checker

AbstractFixedBoundaryCartesianSingleShooting

protected AbstractFixedBoundaryCartesianSingleShooting(ShootingPropagationSettings propagationSettings,
 FixedTimeBoundaryOrbits boundaryConditions,
 CartesianBoundaryConditionChecker conditionChecker)

Constructor with boundary conditions as orbits.

Parameters:

propagationSettings - propagation settings

boundaryConditions - boundary conditions as FixedTimeBoundaryOrbits

conditionChecker - boundary condition checker

Method Details

setScalePositionDefects

public void setScalePositionDefects(double scalePositionDefects)

Setter for scale of position defects.

Parameters:

scalePositionDefects - new scale

getScalePositionDefects

public double getScalePositionDefects()

Getter for scale of position defects.

Returns:

scale

setScaleVelocityDefects

public void setScaleVelocityDefects(double scaleVelocityDefects)

Setter for scale of velocity defects.

Parameters:

scaleVelocityDefects - new scale

getScaleVelocityDefects

public double getScaleVelocityDefects()

Getter for scale of velocity defects.

Returns:

scale

getConditionChecker

protected CartesianBoundaryConditionChecker getConditionChecker()

Getter for the boundary condition checker.

Returns:

checker

getTerminalCartesianState

protected TimeStampedPVCoordinates getTerminalCartesianState()

Getter for the target terminal Cartesian state vector.

Returns:

expected terminal state

setToleranceMassAdjoint

public void setToleranceMassAdjoint(double toleranceMassAdjoint)

Setter for mass adjoint tolerance.

Parameters:

toleranceMassAdjoint - new tolerance value

computeCandidateSolution

protected ShootingBoundaryOutput computeCandidateSolution(SpacecraftState initialState,
 int iterationCount)

Form solution container with input initial state.

Specified by:

computeCandidateSolution in class AbstractFixedInitialCartesianSingleShooting

Parameters:

initialState - initial state

iterationCount - iteration count

Returns:

candidate solution