1   /* Copyright 2022-2026 Romain Serra
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.signal;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.geometry.euclidean.threed.FieldVector3D;
22  import org.orekit.frames.Frame;
23  import org.orekit.time.FieldAbsoluteDate;
24  
25  /**
26   * Data container describing signal reception conditions.
27   *
28   * @param receptionDate    Signal reception date.
29   * @param receiverPosition Receiver position's vector at signal reception.
30   * @param referenceFrame   Frame where position is given.
31   * @param <T> type of the field element
32   * @author Romain Serra
33   * @see SignalReceptionCondition
34   * @since 14.0
35   */
36  public record FieldSignalReceptionCondition<T extends CalculusFieldElement<T>>(FieldAbsoluteDate<T> receptionDate,
37                                                                                 FieldVector3D<T> receiverPosition,
38                                                                                 Frame referenceFrame) {
39  
40      /**
41       * Constructor from non-Field values.
42       *
43       * @param field                    field
44       * @param signalReceptionCondition non-field reception condition
45       */
46      public FieldSignalReceptionCondition(final Field<T> field, final SignalReceptionCondition signalReceptionCondition) {
47          this(new FieldAbsoluteDate<>(field, signalReceptionCondition.receptionDate()),
48                  new FieldVector3D<>(field, signalReceptionCondition.receiverPosition()),
49                  signalReceptionCondition.referenceFrame());
50      }
51  
52      /**
53       * Method returning a non-field reception condition.
54       *
55       * @return non-field version
56       */
57      public SignalReceptionCondition toReceptionCondition() {
58          return new SignalReceptionCondition(receptionDate().toAbsoluteDate(), receiverPosition().toVector3D(),
59                  referenceFrame());
60      }
61  }