RangeBuilder.java

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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
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 *
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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.Range;
import org.orekit.propagation.sampling.OrekitStepInterpolator;
import org.orekit.time.AbsoluteDate;

import java.util.Map;

/** Builder for {@link Range} measurements.
 * @author Luc Maisonobe
 * @since 9.3
 */
public class RangeBuilder extends AbstractMeasurementBuilder<Range> {

    /** Ground station from which measurement is performed. */
    private final GroundStation station;

    /** Flag indicating whether it is a two-way measurement. */
    private final boolean twoway;

    /** Simple constructor.
     * @param noiseSource noise source, may be null for generating perfect measurements
     * @param station ground station from which measurement is performed
     * @param twoWay flag indicating whether it is a two-way measurement
     * @param sigma theoretical standard deviation
     * @param baseWeight base weight
     * @param satellite satellite related to this builder
     */
    public RangeBuilder(final CorrelatedRandomVectorGenerator noiseSource,
                        final GroundStation station, final boolean twoWay,
                        final double sigma, final double baseWeight,
                        final ObservableSatellite satellite) {
        super(noiseSource, sigma, baseWeight, satellite);
        this.station = station;
        this.twoway  = twoWay;
    }

    /** {@inheritDoc} */
    @Override
    protected Range buildObserved(final AbsoluteDate date,
                                  final Map<ObservableSatellite, OrekitStepInterpolator> interpolators) {
        return new Range(station, twoway, date, Double.NaN,
                         getTheoreticalStandardDeviation()[0],
                         getBaseWeight()[0], getSatellites()[0]);
    }

}