Package org.orekit.control.indirect.shooting

Class AbstractIndirectShooting

java.lang.Object

org.orekit.control.indirect.shooting.AbstractIndirectShooting

Direct Known Subclasses:

AbstractFixedBoundaryCartesianSingleShooting

public abstract class AbstractIndirectShooting
extends Object

Abstract class for indirect shooting methods with numerical propagation.

Since:

12.2

Author:

Romain Serra

Field Summary

Fields

Modifier and Type	Field	Description
static double	DEFAULT_TOLERANCE_MASS_ADJOINT	Default value for convergence tolerance on mass adjoint variable.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractIndirectShooting(ShootingPropagationSettings propagationSettings)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected <T extends CalculusFieldElement<T>> FieldExplicitRungeKuttaIntegrator<T>	buildFieldIntegrator(FieldSpacecraftState<T> initialState)	Create Field integrator.
protected abstract <T extends CalculusFieldElement<T>> FieldOrdinaryDifferentialEquation<T>	buildFieldODE(FieldAbsoluteDate<T> referenceDate)	Build Ordinary Differential Equation for Field.
protected NumericalPropagator	buildPropagator(SpacecraftState initialState)	Create numerical propagator.
ShootingPropagationSettings	getPropagationSettings()	Getter for the propagation settings.
abstract ShootingBoundaryOutput	solve(double initialMass, double[] initialGuess)	Solve for the boundary conditions, given an initial mass and an initial guess for the adjoint variables.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_TOLERANCE_MASS_ADJOINT

public static final double DEFAULT_TOLERANCE_MASS_ADJOINT

Default value for convergence tolerance on mass adjoint variable.

See Also:

Constant Field Values

Constructor Detail

AbstractIndirectShooting

protected AbstractIndirectShooting(ShootingPropagationSettings propagationSettings)

Constructor.

Parameters:

propagationSettings - propagation settings

Method Detail

getPropagationSettings

public ShootingPropagationSettings getPropagationSettings()

Getter for the propagation settings.

Returns:

propagation settings

solve

public abstract ShootingBoundaryOutput solve(double initialMass,
                                             double[] initialGuess)

Solve for the boundary conditions, given an initial mass and an initial guess for the adjoint variables.

Parameters:

initialMass - initial mass

initialGuess - initial guess

Returns:

boundary problem solution

buildPropagator

protected NumericalPropagator buildPropagator(SpacecraftState initialState)

Create numerical propagator.

Parameters:

initialState - initial state

Returns:

numerical propagator

buildFieldIntegrator

protected <T extends CalculusFieldElement<T>> FieldExplicitRungeKuttaIntegrator<T> buildFieldIntegrator(FieldSpacecraftState<T> initialState)

Create Field integrator.

Type Parameters:

T - field type

Parameters:

initialState - initial state

Returns:

integrator.

buildFieldODE

protected abstract <T extends CalculusFieldElement<T>> FieldOrdinaryDifferentialEquation<T> buildFieldODE(FieldAbsoluteDate<T> referenceDate)

Build Ordinary Differential Equation for Field.

Type Parameters:

T - field type

Parameters:

referenceDate - date defining the origin of times

Returns:

Field ODE

Since:

13.0