fr.cnes.sirius.patrius.propagation.numerical

Class Jacobianizer

java.lang.Object

fr.cnes.sirius.patrius.math.parameter.Parameterizable

fr.cnes.sirius.patrius.math.parameter.JacobiansParameterizable

fr.cnes.sirius.patrius.propagation.numerical.Jacobianizer

All Implemented Interfaces:

IJacobiansParameterizable, IParameterizable, Serializable

public class Jacobianizer
extends JacobiansParameterizable

Class enabling basic ForceModel instances to be used when processing spacecraft state partial derivatives.

Author:

Véronique Pommier-Maurussane

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Jacobianizer(ForceModel forceModelIn, Collection<ParameterConfiguration> paramsAndSteps, double hPosIn) Simple constructor.

Method Summary

Modifier and Type	Method and Description
void	addDAccDParam(SpacecraftState s, Parameter param, double[] dAccdParam) Compute acceleration derivatives with respect to additional parameters.
void	addDAccDState(SpacecraftState s, double[][] dAccdPos, double[][] dAccdVel) Compute acceleration derivatives with respect to state parameters.

Methods inherited from class fr.cnes.sirius.patrius.math.parameter.JacobiansParameterizable

addJacobiansParameter, addJacobiansParameter, addJacobiansParameter, supportsJacobianParameter

Methods inherited from class fr.cnes.sirius.patrius.math.parameter.Parameterizable

addAllParameters, addAllParameters, addParameter, getParameters, supportsParameter

Methods inherited from class java.lang.Object

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

Methods inherited from interface fr.cnes.sirius.patrius.math.parameter.IParameterizable

getParameters, supportsParameter

Constructor Detail

Jacobianizer

public Jacobianizer(ForceModel forceModelIn,
                    Collection<ParameterConfiguration> paramsAndSteps,
                    double hPosIn)

Simple constructor.

Parameters:

forceModelIn - force model instance to wrap

paramsAndSteps - collection of parameters and their associated steps

hPosIn - step used for finite difference computation with respect to spacecraft position (m)

Method Detail

addDAccDState

public void addDAccDState(SpacecraftState s,
                          double[][] dAccdPos,
                          double[][] dAccdVel)
                   throws PatriusException

Compute acceleration derivatives with respect to state parameters.

Parameters:

s - spacecraft state

dAccdPos - acceleration derivatives with respect to position

dAccdVel - acceleration derivatives with respect to velocity

Throws:

PatriusException - if derivatives cannot be computed

addDAccDParam

public void addDAccDParam(SpacecraftState s,
                          Parameter param,
                          double[] dAccdParam)
                   throws PatriusException

Compute acceleration derivatives with respect to additional parameters.

Parameters:

s - spacecraft state

param - the parameter with respect to which derivatives are required

dAccdParam - acceleration derivatives with respect to specified parameters

Throws:

PatriusException - if derivatives cannot be computed