org.orekit.propagation.conversion

Class KeplerianPropagatorBuilder

java.lang.Object

org.orekit.propagation.conversion.AbstractPropagatorBuilder

org.orekit.propagation.conversion.KeplerianPropagatorBuilder

All Implemented Interfaces:

OrbitDeterminationPropagatorBuilder, PropagatorBuilder

public class KeplerianPropagatorBuilder
extends AbstractPropagatorBuilder
implements OrbitDeterminationPropagatorBuilder

Builder for Keplerian propagator.

Since:

6.0

Author:

Pascal Parraud

Constructor Summary

Constructors

Constructor and Description
KeplerianPropagatorBuilder(Orbit templateOrbit, PositionAngle positionAngle, double positionScale) Build a new instance.
KeplerianPropagatorBuilder(Orbit templateOrbit, PositionAngle positionAngle, double positionScale, AttitudeProvider attitudeProvider) Build a new instance.

Method Summary

Modifier and Type	Method and Description
AbstractKalmanModel	buildKalmanModel(List<OrbitDeterminationPropagatorBuilder> propagatorBuilders, List<CovarianceMatrixProvider> covarianceMatricesProviders, ParameterDriversList estimatedMeasurementsParameters, CovarianceMatrixProvider measurementProcessNoiseMatrix) Build a new Kalman model.
AbstractBatchLSModel	buildLSModel(OrbitDeterminationPropagatorBuilder[] builders, List<ObservedMeasurement<?>> measurements, ParameterDriversList estimatedMeasurementsParameters, ModelObserver observer) Build a new batch least squares model.
Propagator	buildPropagator(double[] normalizedParameters) Build a propagator.

Methods inherited from class org.orekit.propagation.conversion.AbstractPropagatorBuilder

addAdditionalDerivativesProvider, addAdditionalEquations, addSupportedParameter, createInitialOrbit, deselectDynamicParameters, getAdditionalDerivativesProviders, getAdditionalEquations, getAttitudeProvider, getFrame, getInitialOrbitDate, getMu, getOrbitalParametersDrivers, getOrbitType, getPositionAngle, getPositionScale, getPropagationParametersDrivers, getSelectedNormalizedParameters, resetOrbit, setAttitudeProvider, setParameters

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.propagation.conversion.OrbitDeterminationPropagatorBuilder

resetOrbit

Methods inherited from interface org.orekit.propagation.conversion.PropagatorBuilder

getFrame, getInitialOrbitDate, getOrbitalParametersDrivers, getOrbitType, getPositionAngle, getPropagationParametersDrivers, getSelectedNormalizedParameters

Constructor Detail

KeplerianPropagatorBuilder

public KeplerianPropagatorBuilder(Orbit templateOrbit,
                                  PositionAngle positionAngle,
                                  double positionScale)

Build a new instance.

The template orbit is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, the orbit type, and is also used together with the positionScale to convert from the normalized parameters used by the callers of this builder to the real orbital parameters.

Parameters:

templateOrbit - reference orbit from which real orbits will be built

positionAngle - position angle type to use

positionScale - scaling factor used for orbital parameters normalization (typically set to the expected standard deviation of the position)

Since:

8.0

See Also:

KeplerianPropagatorBuilder(Orbit, PositionAngle, double, AttitudeProvider)

KeplerianPropagatorBuilder

public KeplerianPropagatorBuilder(Orbit templateOrbit,
                                  PositionAngle positionAngle,
                                  double positionScale,
                                  AttitudeProvider attitudeProvider)

Build a new instance.

The template orbit is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, the orbit type, and is also used together with the positionScale to convert from the normalized parameters used by the callers of this builder to the real orbital parameters.

Parameters:

templateOrbit - reference orbit from which real orbits will be built

positionAngle - position angle type to use

positionScale - scaling factor used for orbital parameters normalization (typically set to the expected standard deviation of the position)

attitudeProvider - attitude law to use.

Since:

10.1

Method Detail

buildPropagator

public Propagator buildPropagator(double[] normalizedParameters)

Build a propagator.

Specified by:

buildPropagator in interface PropagatorBuilder

Parameters:

normalizedParameters - normalized values for the selected parameters

Returns:

an initialized propagator

buildLSModel

public AbstractBatchLSModel buildLSModel(OrbitDeterminationPropagatorBuilder[] builders,
                                         List<ObservedMeasurement<?>> measurements,
                                         ParameterDriversList estimatedMeasurementsParameters,
                                         ModelObserver observer)

Build a new batch least squares model.

Specified by:

buildLSModel in interface OrbitDeterminationPropagatorBuilder

Parameters:

builders - builders to use for propagation

measurements - measurements

estimatedMeasurementsParameters - estimated measurements parameters

observer - observer to be notified at model calls

Returns:

a new model for the Batch Least Squares orbit determination

buildKalmanModel

public AbstractKalmanModel buildKalmanModel(List<OrbitDeterminationPropagatorBuilder> propagatorBuilders,
                                            List<CovarianceMatrixProvider> covarianceMatricesProviders,
                                            ParameterDriversList estimatedMeasurementsParameters,
                                            CovarianceMatrixProvider measurementProcessNoiseMatrix)

Build a new Kalman model.

Specified by:

buildKalmanModel in interface OrbitDeterminationPropagatorBuilder

Parameters:

propagatorBuilders - propagators builders used to evaluate the orbits.

covarianceMatricesProviders - providers for covariance matrices

estimatedMeasurementsParameters - measurement parameters to estimate

measurementProcessNoiseMatrix - provider for measurement process noise matrix

Returns:

a new model for Kalman Filter orbit determination