1   /* Copyright 2002-2025 CS GROUP
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.propagation.analytical.gnss.data;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.orekit.gnss.SatelliteSystem;
22  import org.orekit.time.TimeScales;
23  
24  /**
25   * Container for data contained in a QZSS navigation message.
26   * @author Bryan Cazabonne
27   * @since 11.0
28   */
29  public class QZSSLegacyNavigationMessage extends LegacyNavigationMessage<QZSSLegacyNavigationMessage> {
30  
31      /** Message type.
32       * @since 14.0
33       */
34      public static final String LNAV = "LNAV";
35  
36      /** Constructor.
37       * @param timeScales known time scales
38       * @param system     satellite system to consider for interpreting week number
39       *                   (may be different from real system, for example in Rinex nav, weeks
40       *                   are always according to GPS)
41       * @param type       message type
42       */
43      public QZSSLegacyNavigationMessage(final TimeScales timeScales, final SatelliteSystem system,
44                                         final String type) {
45          super(GNSSConstants.QZSS_MU, GNSSConstants.QZSS_AV, GNSSConstants.QZSS_WEEK_NB,
46                timeScales, system, type);
47      }
48  
49      /** Constructor from field instance.
50       * @param <T> type of the field elements
51       * @param original regular field instance
52       */
53      public <T extends CalculusFieldElement<T>> QZSSLegacyNavigationMessage(final FieldQZSSLegacyNavigationMessage<T> original) {
54          super(original);
55      }
56  
57      /** {@inheritDoc} */
58      @SuppressWarnings("unchecked")
59      @Override
60      public <T extends CalculusFieldElement<T>, F extends FieldGnssOrbitalElements<T, QZSSLegacyNavigationMessage>>
61          F toField(final Field<T> field) {
62          return (F) new FieldQZSSLegacyNavigationMessage<>(field, this);
63      }
64  
65  }