org.orekit.estimation.sequential

Class DSSTKalmanModel

java.lang.Object

org.orekit.estimation.sequential.AbstractKalmanModel

org.orekit.estimation.sequential.DSSTKalmanModel

All Implemented Interfaces:

NonLinearProcess<MeasurementDecorator>, KalmanEstimation

public class DSSTKalmanModel
extends AbstractKalmanModel

Class defining the process model dynamics to use with a KalmanEstimator.

This class is an adaption of the KalmanModel class but for the DSST propagator.

Since:

10.0

Author:

Romain Gerbaud, Maxime Journot, Bryan Cazabonne

Constructor Summary

Constructors

Constructor and Description
DSSTKalmanModel(List<OrbitDeterminationPropagatorBuilder> propagatorBuilders, List<CovarianceMatrixProvider> covarianceMatricesProviders, ParameterDriversList estimatedMeasurementParameters, CovarianceMatrixProvider measurementProcessNoiseMatrix, PropagationType propagationType, PropagationType stateType) Kalman process model constructor.

Method Summary

Modifier and Type	Method and Description
protected void	analyticalDerivativeComputations(AbstractJacobiansMapper mapper, SpacecraftState state) Analytical computation of derivatives.
protected void	updateReferenceTrajectories(Propagator[] propagators, PropagationType pType, PropagationType sType) Update the reference trajectories using the propagators as input.

Methods inherited from class org.orekit.estimation.sequential.AbstractKalmanModel

finalizeEstimation, getBuilders, getCorrectedMeasurement, getCorrectedSpacecraftStates, getCurrentDate, getCurrentMeasurementNumber, getEstimate, getEstimatedMeasurementsParameters, getEstimatedOrbitalParameters, getEstimatedPropagationParameters, getEstimatedPropagators, getEvolution, getInnovation, getMappers, getPhysicalEstimatedCovarianceMatrix, getPhysicalEstimatedState, getPhysicalInnovationCovarianceMatrix, getPhysicalKalmanGain, getPhysicalMeasurementJacobian, getPhysicalStateTransitionMatrix, getPredictedMeasurement, getPredictedSpacecraftStates, getReferenceTrajectories, setMappers, setReferenceTrajectories

Methods inherited from class java.lang.Object

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

Constructor Detail

DSSTKalmanModel

public DSSTKalmanModel(List<OrbitDeterminationPropagatorBuilder> propagatorBuilders,
                       List<CovarianceMatrixProvider> covarianceMatricesProviders,
                       ParameterDriversList estimatedMeasurementParameters,
                       CovarianceMatrixProvider measurementProcessNoiseMatrix,
                       PropagationType propagationType,
                       PropagationType stateType)

Kalman process model constructor.

Parameters:

propagatorBuilders - propagators builders used to evaluate the orbits.

covarianceMatricesProviders - providers for covariance matrices

estimatedMeasurementParameters - measurement parameters to estimate

measurementProcessNoiseMatrix - provider for measurement process noise matrix

propagationType - type of the orbit used for the propagation (mean or osculating)

stateType - type of the elements used to define the orbital state (mean or osculating)

Method Detail

updateReferenceTrajectories

protected void updateReferenceTrajectories(Propagator[] propagators,
                                           PropagationType pType,
                                           PropagationType sType)

Update the reference trajectories using the propagators as input.

Specified by:

updateReferenceTrajectories in class AbstractKalmanModel

Parameters:

propagators - The new propagators to use

pType - propagationType type of the orbit used for the propagation (mean or osculating)

sType - type of the elements used to define the orbital state (mean or osculating)

analyticalDerivativeComputations

protected void analyticalDerivativeComputations(AbstractJacobiansMapper mapper,
                                                SpacecraftState state)

Analytical computation of derivatives. This method allow to compute analytical derivatives.

Specified by:

analyticalDerivativeComputations in class AbstractKalmanModel

Parameters:

mapper - Jacobian mapper to calculate short period perturbations

state - state used to calculate short period perturbations