Package org.orekit.control.heuristics

Class FieldSmaChangingImpulseProvider<T extends CalculusFieldElement<T>>

java.lang.Object

org.orekit.control.heuristics.FieldAbstractInPlaneImpulseProvider<T>

org.orekit.control.heuristics.FieldSmaChangingImpulseProvider<T>

All Implemented Interfaces:

FieldImpulseProvider<T>

public class FieldSmaChangingImpulseProvider<T extends CalculusFieldElement<T>>
extends FieldAbstractInPlaneImpulseProvider<T>

Class modelling impulsive maneuvers to set the osculating semi-major axis to a given value. The impulse vector is tangential and computed in the same frame as the orbit. The resulting osculating eccentricity depends on the execution location. The instantaneous orbital plane is left unchanged. A constraint on the maximum magnitude can be optionally set.

Since:

14.0

Author:

Romain Serra

See Also:

• FieldAbstractInPlaneImpulseProvider
• OsculatingSmaChangeImpulseProvider

Constructor Summary

Constructors

Constructor	Description
FieldSmaChangingImpulseProvider(T targetSemiMajorAxis)	Constructor with default maximum magnitude set to positive infinity (unconstrained).
FieldSmaChangingImpulseProvider(T maximumMagnitude, T targetSemiMajorAxis)	Constructor.

Method Summary

Modifier and Type	Method	Description
FieldVector3D<T>	getUnconstrainedImpulse(FieldSpacecraftState<T> state, boolean isForward)	Compute the impulse without magnitude constraint.

Methods inherited from class org.orekit.control.heuristics.FieldAbstractInPlaneImpulseProvider

getImpulse, getMaximumMagnitude

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.forces.maneuvers.FieldImpulseProvider

finish, init

Constructor Details

FieldSmaChangingImpulseProvider

public FieldSmaChangingImpulseProvider(T targetSemiMajorAxis)

Constructor with default maximum magnitude set to positive infinity (unconstrained).

Parameters:

targetSemiMajorAxis - osculating value to achieve

FieldSmaChangingImpulseProvider

public FieldSmaChangingImpulseProvider(T maximumMagnitude,
 T targetSemiMajorAxis)

Constructor.

Parameters:

maximumMagnitude - maximum magnitude

targetSemiMajorAxis - osculating value to achieve

Method Details

getUnconstrainedImpulse

public FieldVector3D<T> getUnconstrainedImpulse(FieldSpacecraftState<T> state,
 boolean isForward)

Description copied from class: FieldAbstractInPlaneImpulseProvider

Compute the impulse without magnitude constraint.

Specified by:

getUnconstrainedImpulse in class FieldAbstractInPlaneImpulseProvider<T extends CalculusFieldElement<T>>

Parameters:

state - state immediately before (or after in backward time) the maneuver

isForward - flag on propagation direction

Returns:

impulse vector