org.orekit.estimation.sequential

Class SemiAnalyticalMeasurementHandler

java.lang.Object

org.orekit.estimation.sequential.SemiAnalyticalMeasurementHandler

All Implemented Interfaces:

OrekitStepHandler

public class SemiAnalyticalMeasurementHandler
extends Object
implements OrekitStepHandler

Step handler picking up measurements for both SemiAnalyticalUnscentedKalmanEstimator and SemiAnalyticalKalmanEstimator.

Since:

11.3

Author:

Gaëtan Pierre, Bryan Cazabonne, Julie Bayard, Maxime Journot

Constructor Summary

Constructors

Constructor and Description
SemiAnalyticalMeasurementHandler(SemiAnalyticalProcess model, org.hipparchus.filtering.kalman.KalmanFilter<MeasurementDecorator> filter, List<ObservedMeasurement<?>> observedMeasurements, AbsoluteDate referenceDate) Simple constructor.
SemiAnalyticalMeasurementHandler(SemiAnalyticalProcess model, org.hipparchus.filtering.kalman.KalmanFilter<MeasurementDecorator> filter, List<ObservedMeasurement<?>> observedMeasurements, AbsoluteDate referenceDate, boolean isUnscented) Simple constructor.

Method Summary

Modifier and Type	Method and Description
void	handleStep(OrekitStepInterpolator interpolator) Handle the current step.
void	init(SpacecraftState s0, AbsoluteDate t) Initialize step handler at the start of a propagation.

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.sampling.OrekitStepHandler

finish

Constructor Detail

SemiAnalyticalMeasurementHandler

public SemiAnalyticalMeasurementHandler(SemiAnalyticalProcess model,
                                        org.hipparchus.filtering.kalman.KalmanFilter<MeasurementDecorator> filter,
                                        List<ObservedMeasurement<?>> observedMeasurements,
                                        AbsoluteDate referenceDate)

Simple constructor.

Using this constructor, the Kalman filter is supposed to be extended.

Parameters:

model - semi-analytical kalman model

filter - kalman filter instance

observedMeasurements - list of observed measurements

referenceDate - reference date

See Also:

SemiAnalyticalMeasurementHandler(SemiAnalyticalProcess, KalmanFilter, List, AbsoluteDate, boolean)

SemiAnalyticalMeasurementHandler

public SemiAnalyticalMeasurementHandler(SemiAnalyticalProcess model,
                                        org.hipparchus.filtering.kalman.KalmanFilter<MeasurementDecorator> filter,
                                        List<ObservedMeasurement<?>> observedMeasurements,
                                        AbsoluteDate referenceDate,
                                        boolean isUnscented)

Simple constructor.

Parameters:

model - semi-analytical kalman model

filter - kalman filter instance

observedMeasurements - list of observed measurements

referenceDate - reference date

isUnscented - true if the Kalman filter is unscented

Since:

11.3.2

Method Detail

init

public void init(SpacecraftState s0,
                 AbsoluteDate t)

Initialize step handler at the start of a propagation.

This method is called once at the start of the propagation. It may be used by the step handler to initialize some internal data if needed.

The default method does nothing

Specified by:

init in interface OrekitStepHandler

Parameters:

s0 - initial state

t - target time for the integration

handleStep

public void handleStep(OrekitStepInterpolator interpolator)

Handle the current step.

Specified by:

handleStep in interface OrekitStepHandler

Parameters:

interpolator - interpolator set up for the current step