Package org.orekit.estimation.measurements

Class EstimatedMeasurement<T extends ObservedMeasurement<T>>

java.lang.Object
org.orekit.estimation.measurements.EstimatedMeasurementBase<T>
org.orekit.estimation.measurements.EstimatedMeasurement<T>
Type Parameters:
T - the type of the measurement
All Implemented Interfaces:
Comparable<ComparableMeasurement>, ComparableMeasurement, TimeStamped
public class EstimatedMeasurement<T extends ObservedMeasurement<T>> extends EstimatedMeasurementBase<T>
Class holding an estimated theoretical value associated to an observed measurement.
Since:
8.0
Author:
Luc Maisonobe

  • Constructor Details

    • EstimatedMeasurement

      public EstimatedMeasurement(T observedMeasurement, int iteration, int count, SpacecraftState[] states, TimeStampedPVCoordinates[] participants)
      Simple constructor.
      Parameters:
      observedMeasurement - associated observed measurement
      iteration - iteration number
      count - evaluations counter
      states - states of the spacecrafts
      participants - coordinates of the participants in signal travel order in inertial frame

    • EstimatedMeasurement

      public EstimatedMeasurement(EstimatedMeasurementBase<T> estimatedMeasurementBase)
      Constructor from measurement base.
      Parameters:
      estimatedMeasurementBase - estimated measurement base
      Since:
      12.1.3

  • Method Details

    • getStateSize

      public int getStateSize()
      Get state size.

      Warning, the setStateDerivatives(int, double[][]) method must have been called before this method is called.

      Returns:
      state size
      Since:
      10.1

    • getStateDerivatives

      public double[][] getStateDerivatives(int index)
      Get the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.
      Parameters:
      index - index of the state, according to the states passed at construction
      Returns:
      partial derivatives of the simulated value (array of size dimension x 6)

    • setStateDerivatives

      public void setStateDerivatives(int index, double[]... derivatives)
      Set the partial derivatives of the simulated measurement with respect to state Cartesian coordinates.
      Parameters:
      index - index of the state, according to the states passed at construction
      derivatives - partial derivatives with respect to state

    • getDerivativesDrivers

      public Stream<ParameterDriver> getDerivativesDrivers()
      Get all the drivers with set derivatives.
      Returns:
      all the drivers with set derivatives
      Since:
      9.0

    • getParameterDerivatives

      public double[] getParameterDerivatives(ParameterDriver driver) throws OrekitIllegalArgumentException
      Get the partial derivatives of the simulated measurement with respect to a parameter.
      Parameters:
      driver - name of the span of the driver for the parameter for which the derivative wants to be known.
      Returns:
      partial derivatives of the simulated value
      Throws:
      OrekitIllegalArgumentException - if parameter is unknown or OrekitIllegalStateException if this function is used on a PDriver having several values driven, in this case the method getParameterDerivatives(ParameterDriver, AbsoluteDate) must be called

    • getParameterDerivatives

      public double[] getParameterDerivatives(ParameterDriver driver, AbsoluteDate date) throws OrekitIllegalArgumentException
      Get the partial derivatives of the simulated measurement with respect to a parameter.
      Parameters:
      driver - name of the span of the driver for the parameter for which the derivative wants to be known.
      date - date at which the parameter derivatives wants to be known
      Returns:
      partial derivatives of the simulated value
      Throws:
      OrekitIllegalArgumentException - if parameter is unknown

    • setParameterDerivatives

      public void setParameterDerivatives(ParameterDriver driver, AbsoluteDate date, double... parameterDerivatives)
      Set the partial derivatives of the simulated measurement with respect to parameter.
      Parameters:
      driver - name of the span of the driver for the parameter for which the derivative wants to be known.
      date - date at which the parameterDerivative wants to be set
      parameterDerivatives - partial derivatives with respect to parameter

    • setParameterDerivatives

      public void setParameterDerivatives(ParameterDriver driver, TimeSpanMap<double[]> parameterDerivativesMap)
      Set the partial derivatives of the simulated measurement with respect to parameter.
      Parameters:
      driver - driver for the parameter
      parameterDerivativesMap - partial derivatives with respect to parameter