org.orekit.estimation.measurements

Class EstimatedMeasurement<T extends ObservedMeasurement<T>>

java.lang.Object

org.orekit.estimation.measurements.EstimatedMeasurement<T>

Type Parameters:

T - the type of the measurement

All Implemented Interfaces:

TimeStamped

public class EstimatedMeasurement<T extends ObservedMeasurement<T>>
extends Object
implements TimeStamped

Class holding an estimated theoretical value associated to an observed measurement.

Since:

8.0

Author:

Luc Maisonobe

Constructor Summary

Constructors

Constructor and Description
EstimatedMeasurement(T observedMeasurement, int iteration, int count, SpacecraftState state) Simple constructor.

Method Summary

Modifier and Type	Method and Description
int	getCount() Get the evaluations counter.
double[]	getCurrentWeight() Get the current weight.
AbsoluteDate	getDate() Get the date.
double[]	getEstimatedValue() Get the estimated value.
int	getIteration() Get the iteration number.
T	getObservedMeasurement() Get the associated observed measurement.
double[]	getParameterDerivatives(ParameterDriver driver) Get the partial derivatives of the simulated measurement with respect to a parameter.
SpacecraftState	getState() Get the state of the spacecraft.
double[][]	getStateDerivatives() Get the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.
double	getTimeOffset() Get the time offset from state date to measurement date.
void	setCurrentWeight(double... currentWeight) Set the current weight.
void	setEstimatedValue(double... estimatedValue) Set the estimated value.
void	setParameterDerivatives(ParameterDriver driver, double... parameterDerivatives) Set the partial derivatives of the simulated measurement with respect to parameter.
void	setStateDerivatives(double[]... stateDerivatives) Set the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.

Methods inherited from class java.lang.Object

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

Constructor Detail

EstimatedMeasurement

public EstimatedMeasurement(T observedMeasurement,
                            int iteration,
                            int count,
                            SpacecraftState state)

Simple constructor.

Parameters:

observedMeasurement - associated observed measurement

iteration - iteration number

count - evaluations counter

state - state of the spacecraft

Method Detail

getObservedMeasurement

public T getObservedMeasurement()

Get the associated observed measurement.

Returns:

associated observed measurement

getDate

public AbsoluteDate getDate()

Get the date.

Specified by:

getDate in interface TimeStamped

Returns:

date attached to the object

getIteration

public int getIteration()

Get the iteration number.

Returns:

iteration number

getCount

public int getCount()

Get the evaluations counter.

Returns:

evaluations counter

getState

public SpacecraftState getState()

Get the state of the spacecraft.

Returns:

state of the spacecraft

getTimeOffset

public double getTimeOffset()

Get the time offset from state date to measurement date.

Returns:

time offset from state date to measurement date

getEstimatedValue

public double[] getEstimatedValue()

Get the estimated value.

Returns:

estimated value

setEstimatedValue

public void setEstimatedValue(double... estimatedValue)

Set the estimated value.

Parameters:

estimatedValue - estimated value

getCurrentWeight

public double[] getCurrentWeight()

Get the current weight.

By default, the current weight is measurement base weight.

Returns:

current weight

setCurrentWeight

public void setCurrentWeight(double... currentWeight)

Set the current weight.

Parameters:

currentWeight - current weight

getStateDerivatives

public double[][] getStateDerivatives()

Get the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.

Returns:

partial derivatives of the simulated value (array of size dimension x 6)

setStateDerivatives

public void setStateDerivatives(double[]... stateDerivatives)

Set the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.

Parameters:

stateDerivatives - partial derivatives with respect to state

getParameterDerivatives

public double[] getParameterDerivatives(ParameterDriver driver)
                                 throws OrekitIllegalArgumentException

Get the partial derivatives of the simulated measurement with respect to a parameter.

Parameters:

driver - driver for the parameter

Returns:

partial derivatives of the simulated value

Throws:

OrekitIllegalArgumentException - if parameter is unknown

setParameterDerivatives

public void setParameterDerivatives(ParameterDriver driver,
                                    double... parameterDerivatives)

Set the partial derivatives of the simulated measurement with respect to parameter.

Parameters:

driver - driver for the parameter

parameterDerivatives - partial derivatives with respect to parameter