TurnAroundRangeBuilder.java
/* Copyright 2002-2024 CS GROUP
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* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package org.orekit.estimation.measurements.generation;
import org.hipparchus.random.CorrelatedRandomVectorGenerator;
import org.orekit.estimation.measurements.GroundStation;
import org.orekit.estimation.measurements.ObservableSatellite;
import org.orekit.estimation.measurements.TurnAroundRange;
import org.orekit.propagation.sampling.OrekitStepInterpolator;
import org.orekit.time.AbsoluteDate;
import java.util.Map;
/** Builder for {@link TurnAroundRange} measurements.
* @author Luc Maisonobe
* @since 9.3
*/
public class TurnAroundRangeBuilder extends AbstractMeasurementBuilder<TurnAroundRange> {
/** Primary ground station from which measurement is performed. */
private final GroundStation primaryStation;
/** Secondary ground station reflecting the signal. */
private final GroundStation secondaryStation;
/** Simple constructor.
* @param noiseSource noise source, may be null for generating perfect measurements
* @param primaryStation ground station from which measurement is performed
* @param secondaryStation ground station reflecting the signal
* @param sigma theoretical standard deviation
* @param baseWeight base weight
* @param satellite satellite related to this builder
*/
public TurnAroundRangeBuilder(final CorrelatedRandomVectorGenerator noiseSource,
final GroundStation primaryStation, final GroundStation secondaryStation,
final double sigma, final double baseWeight,
final ObservableSatellite satellite) {
super(noiseSource, sigma, baseWeight, satellite);
this.primaryStation = primaryStation;
this.secondaryStation = secondaryStation;
}
/** {@inheritDoc} */
@Override
protected TurnAroundRange buildObserved(final AbsoluteDate date,
final Map<ObservableSatellite, OrekitStepInterpolator> interpolators) {
return new TurnAroundRange(primaryStation, secondaryStation,
date, Double.NaN,
getTheoreticalStandardDeviation()[0],
getBaseWeight()[0], getSatellites()[0]);
}
}