PhaseBuilder.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
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* Unless required by applicable law or agreed to in writing, software
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package org.orekit.estimation.measurements.gnss;
import java.util.Map;
import org.hipparchus.random.CorrelatedRandomVectorGenerator;
import org.orekit.estimation.measurements.GroundStation;
import org.orekit.estimation.measurements.ObservableSatellite;
import org.orekit.estimation.measurements.generation.AbstractMeasurementBuilder;
import org.orekit.propagation.sampling.OrekitStepInterpolator;
import org.orekit.time.AbsoluteDate;
/** Builder for {@link Phase} measurements.
* @author Luc Maisonobe
* @since 10.1
*/
public class PhaseBuilder extends AbstractMeasurementBuilder<Phase> {
/** Cache for ambiguities.
* @since 12.1
*/
private final AmbiguityCache cache;
/** Ground station from which measurement is performed. */
private final GroundStation station;
/** Wavelength of the phase observed value [m]. */
private final double wavelength;
/** Simple constructor.
* @param noiseSource noise source, may be null for generating perfect measurements
* @param station ground station from which measurement is performed
* @param wavelength phase observed value wavelength (m)
* @param sigma theoretical standard deviation
* @param baseWeight base weight
* @param satellite satellite related to this builder
* @param cache from which ambiguity drive should come
* @since 12.1
*/
public PhaseBuilder(final CorrelatedRandomVectorGenerator noiseSource,
final GroundStation station, final double wavelength,
final double sigma, final double baseWeight,
final ObservableSatellite satellite,
final AmbiguityCache cache) {
super(noiseSource, sigma, baseWeight, satellite);
this.station = station;
this.wavelength = wavelength;
this.cache = cache;
}
/** {@inheritDoc} */
@Override
protected Phase buildObserved(final AbsoluteDate date,
final Map<ObservableSatellite, OrekitStepInterpolator> interpolators) {
return new Phase(station, date, Double.NaN, wavelength,
getTheoreticalStandardDeviation()[0],
getBaseWeight()[0], getSatellites()[0], cache);
}
}