TLEKalmanModel.java

  1. /* Copyright 2002-2022 CS GROUP
  2.  * Licensed to CS GROUP (CS) under one or more
  3.  * contributor license agreements.  See the NOTICE file distributed with
  4.  * this work for additional information regarding copyright ownership.
  5.  * CS licenses this file to You under the Apache License, Version 2.0
  6.  * (the "License"); you may not use this file except in compliance with
  7.  * the License.  You may obtain a copy of the License at
  8.  *
  9.  *   http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.orekit.estimation.sequential;

  18. import java.util.List;

  19. import org.orekit.annotation.DefaultDataContext;
  20. import org.orekit.propagation.MatricesHarvester;
  21. import org.orekit.propagation.PropagationType;
  22. import org.orekit.propagation.Propagator;
  23. import org.orekit.propagation.analytical.tle.TLEJacobiansMapper;
  24. import org.orekit.propagation.analytical.tle.TLEPropagator;
  25. import org.orekit.propagation.conversion.OrbitDeterminationPropagatorBuilder;
  26. import org.orekit.utils.ParameterDriversList;

  27. /** Class defining the process model dynamics to use with a {@link KalmanEstimator}.
  28.  * <p>
  29.  * This class is an adaption of the {@link KalmanModel} class
  30.  * but for the {@link TLEPropagator TLE propagator}.
  31.  * </p>
  32.  * @author Romain Gerbaud
  33.  * @author Maxime Journot
  34.  * @author Bryan Cazabonne
  35.  * @author Thomas Paulet
  36.  * @since 11.0
  37.  * @deprecated as of 11.1, replaced by {@link KalmanModel}
  38.  */
  39. @Deprecated
  40. public class TLEKalmanModel extends AbstractKalmanModel {

  41.     /** Kalman process model constructor (package private).
  42.      * @param propagatorBuilders propagators builders used to evaluate the orbits.
  43.      * @param covarianceMatricesProviders providers for covariance matrices
  44.      * @param estimatedMeasurementParameters measurement parameters to estimate
  45.      * @param measurementProcessNoiseMatrix provider for measurement process noise matrix
  46.      */
  47.     public TLEKalmanModel(final List<OrbitDeterminationPropagatorBuilder> propagatorBuilders,
  48.                           final List<CovarianceMatrixProvider> covarianceMatricesProviders,
  49.                           final ParameterDriversList estimatedMeasurementParameters,
  50.                           final CovarianceMatrixProvider measurementProcessNoiseMatrix) {
  51.         // call super constructor
  52.         super(propagatorBuilders, covarianceMatricesProviders, estimatedMeasurementParameters,
  53.               measurementProcessNoiseMatrix, new TLEJacobiansMapper[propagatorBuilders.size()]);
  54.     }

  55.     /** {@inheritDoc} */
  56.     @Override
  57.     @DefaultDataContext
  58.     protected void updateReferenceTrajectories(final Propagator[] propagators,
  59.                                                final PropagationType pType,
  60.                                                final PropagationType sType) {

  61.         // Update the reference trajectory propagator
  62.         setReferenceTrajectories(propagators);

  63.         // Jacobian harvesters
  64.         final MatricesHarvester[] harvesters = new MatricesHarvester[propagators.length];

  65.         for (int k = 0; k < propagators.length; ++k) {
  66.             // Link the partial derivatives to this new propagator
  67.             final String equationName = KalmanEstimator.class.getName() + "-derivatives-" + k;
  68.             harvesters[k] = ((TLEPropagator) getReferenceTrajectories()[k]).setupMatricesComputation(equationName, null, null);
  69.         }

  70.         // Update Jacobian harvesters
  71.         setHarvesters(harvesters);

  72.     }

  73. }