PhaseCentersRangeModifier.java
/* Copyright 2002-2024 Luc Maisonobe
* 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,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.estimation.measurements.modifiers;
import java.util.Collections;
import java.util.List;
import org.orekit.estimation.measurements.EstimatedMeasurementBase;
import org.orekit.estimation.measurements.EstimationModifier;
import org.orekit.estimation.measurements.Range;
import org.orekit.gnss.antenna.FrequencyPattern;
import org.orekit.utils.ParameterDriver;
/** Ground and on-board antennas offsets effect on range measurements.
* @author Luc Maisonobe
* @since 12.0
*/
public class PhaseCentersRangeModifier
extends PhaseCentersGroundReceiverBaseModifier<Range>
implements EstimationModifier<Range> {
/** Simple constructor.
* @param stationPattern station pattern
* @param satellitePattern satellite pattern
*/
public PhaseCentersRangeModifier(final FrequencyPattern stationPattern,
final FrequencyPattern satellitePattern) {
super(stationPattern, satellitePattern);
}
/** {@inheritDoc} */
@Override
public List<ParameterDriver> getParametersDrivers() {
return Collections.emptyList();
}
/** {@inheritDoc} */
@Override
public void modifyWithoutDerivatives(final EstimatedMeasurementBase<Range> estimated) {
final double delta = estimated.getObservedMeasurement().isTwoWay() ?
twoWayDistanceModification(estimated) :
oneWayDistanceModification(estimated);
estimated.modifyEstimatedValue(this,
estimated.getEstimatedValue()[0] + delta);
}
}