PVBuilder.java
/* Copyright 2002-2024 CS GROUP
* Licensed to CS GROUP (CS) under one or more
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.orekit.estimation.measurements.generation;
import org.hipparchus.geometry.euclidean.threed.Vector3D;
import org.hipparchus.random.CorrelatedRandomVectorGenerator;
import org.orekit.estimation.measurements.ObservableSatellite;
import org.orekit.estimation.measurements.PV;
import org.orekit.propagation.sampling.OrekitStepInterpolator;
import org.orekit.time.AbsoluteDate;
import java.util.Map;
/** Builder for {@link PV} measurements.
* @author Luc Maisonobe
* @since 9.3
*/
public class PVBuilder extends AbstractMeasurementBuilder<PV> {
/** Simple constructor.
* @param noiseSource noise source, may be null for generating perfect measurements
* @param sigmaPosition theoretical standard deviation on position components
* @param sigmaVelocity theoretical standard deviation on velocity components
* @param baseWeight base weight
* @param satellite satellite related to this builder
*/
public PVBuilder(final CorrelatedRandomVectorGenerator noiseSource,
final double sigmaPosition, final double sigmaVelocity,
final double baseWeight, final ObservableSatellite satellite) {
super(noiseSource,
new double[] {
sigmaPosition, sigmaPosition, sigmaPosition,
sigmaVelocity, sigmaVelocity, sigmaVelocity
}, new double[] {
baseWeight, baseWeight, baseWeight,
baseWeight, baseWeight, baseWeight
}, satellite);
}
/** {@inheritDoc} */
@Override
protected PV buildObserved(final AbsoluteDate date,
final Map<ObservableSatellite, OrekitStepInterpolator> interpolators) {
return new PV(date, Vector3D.NaN, Vector3D.NaN,
getTheoreticalStandardDeviation()[0],
getTheoreticalStandardDeviation()[3],
getBaseWeight()[0], getSatellites()[0]);
}
}