Package org.orekit.estimation.leastsquares

Class AbstractBatchLSModel

java.lang.Object

org.orekit.estimation.leastsquares.AbstractBatchLSModel

All Implemented Interfaces:

MultivariateJacobianFunction

Direct Known Subclasses:

BatchLSModel, DSSTBatchLSModel

public abstract class AbstractBatchLSModel
extends Object
implements MultivariateJacobianFunction

Bridge between measurements and least squares problems.

Since:

11.0

Author:

Luc Maisonobe, Bryan Cazabonne, Thomas Paulet, Melina Vanel

Constructor Summary

Constructors

Constructor	Description
AbstractBatchLSModel(PropagatorBuilder[] propagatorBuilders, List<ObservedMeasurement<?>> measurements, ParameterDriversList estimatedMeasurementsParameters, ModelObserver observer)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected abstract MatricesHarvester	configureHarvester(Propagator propagator)	Configure the propagator to compute derivatives.
protected abstract Orbit	configureOrbits(MatricesHarvester harvester, Propagator propagator)	Configure the current estimated orbits.
Propagator[]	createPropagators(RealVector point)	Create the propagators and parameters corresponding to an evaluation point.
void	fetchEvaluatedMeasurement(int index, EstimatedMeasurement<?> evaluation)	Fetch a measurement that was evaluated during propagation.
int	getEvaluationsCount()	Get the evaluations count.
int	getIterationsCount()	Get the iterations count.
ParameterDriversList	getSelectedOrbitalParametersDriversForBuilder(int iBuilder)	Get the selected orbital drivers for a propagatorBuilder.
ParameterDriversList	getSelectedPropagationDriversForBuilder(int iBuilder)	Get the selected propagation drivers for a propagatorBuilder.
boolean	isForwardPropagation()	Return the forward propagation flag.
void	setEvaluationsCounter(Incrementor evaluationsCounter)	Set the counter for evaluations.
void	setIterationsCounter(Incrementor iterationsCounter)	Set the counter for iterations.
Pair<RealVector,RealMatrix>	value(RealVector point)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractBatchLSModel

public AbstractBatchLSModel(PropagatorBuilder[] propagatorBuilders,
                            List<ObservedMeasurement<?>> measurements,
                            ParameterDriversList estimatedMeasurementsParameters,
                            ModelObserver observer)

Constructor.

Parameters:

propagatorBuilders - builders to use for propagation

measurements - measurements

estimatedMeasurementsParameters - estimated measurements parameters

observer - observer to be notified at model calls

Method Detail

setEvaluationsCounter

public void setEvaluationsCounter(Incrementor evaluationsCounter)

Set the counter for evaluations.

Parameters:

evaluationsCounter - counter for evaluations

setIterationsCounter

public void setIterationsCounter(Incrementor iterationsCounter)

Set the counter for iterations.

Parameters:

iterationsCounter - counter for iterations

isForwardPropagation

public boolean isForwardPropagation()

Return the forward propagation flag.

Returns:

the forward propagation flag

configureHarvester

protected abstract MatricesHarvester configureHarvester(Propagator propagator)

Configure the propagator to compute derivatives.

Parameters:

propagator - Propagator to configure

Returns:

harvester harvester to retrive the State Transition Matrix and Jacobian Matrix

configureOrbits

protected abstract Orbit configureOrbits(MatricesHarvester harvester,
                                         Propagator propagator)

Configure the current estimated orbits.

For DSST orbit determination, short period derivatives are also calculated.

Parameters:

harvester - harvester for matrices

propagator - the orbit propagator

Returns:

the current estimated orbits

value

public Pair<RealVector,RealMatrix> value(RealVector point)

Specified by:

value in interface MultivariateJacobianFunction

getSelectedOrbitalParametersDriversForBuilder

public ParameterDriversList getSelectedOrbitalParametersDriversForBuilder(int iBuilder)

Get the selected orbital drivers for a propagatorBuilder.

Parameters:

iBuilder - index of the builder in the builders' array

Returns:

the list of selected orbital drivers for propagatorBuilder of index iBuilder

Since:

11.1

getSelectedPropagationDriversForBuilder

public ParameterDriversList getSelectedPropagationDriversForBuilder(int iBuilder)

Get the selected propagation drivers for a propagatorBuilder.

Parameters:

iBuilder - index of the builder in the builders' array

Returns:

the list of selected propagation drivers for propagatorBuilder of index iBuilder

createPropagators

public Propagator[] createPropagators(RealVector point)

Create the propagators and parameters corresponding to an evaluation point.

Parameters:

point - evaluation point

Returns:

an array of new propagators

fetchEvaluatedMeasurement

public void fetchEvaluatedMeasurement(int index,
                                      EstimatedMeasurement<?> evaluation)

Fetch a measurement that was evaluated during propagation.

Parameters:

index - index of the measurement first component

evaluation - measurement evaluation

getIterationsCount

public int getIterationsCount()

Get the iterations count.

Returns:

iterations count

getEvaluationsCount

public int getEvaluationsCount()

Get the evaluations count.

Returns:

evaluations count