SubFrame4A.java

  1. /* Copyright 2022-2025 Thales Alenia Space
  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.gnss.rflink.gps;

  19. /**
  20.  * Container for sub-frames 4, pages 1, 6, 11, 16 and 21,
  21.  * but also for sub-frames 4, pages 2, 3, 4, 5, 7, 8, and 9
  22.  * which have a similar structure.
  23.  * <p>
  24.  * Table 40-1, sheets 6 and 7 in
  25.  * <a href="https://navcen.uscg.gov/sites/default/files/pdf/gps/IS-GPS-200N.pdf">NAVSTAR
  26.  * GPS Space Segment/Navigation User Segment Interface</a>, IS-GPS-200N, 22 Aug 2022
  27.  * </p>
  28.  * @author Luc Maisonobe
  29.  * @since 12.0
  30.  */
  31. public class SubFrame4A extends SubFrame45 {

  33.     /** Index of reserved field in word 3. */
  34.     private static final int RESERVED_3 = 9;

  36.     /** Index of reserved field in word 4. */
  37.     private static final int RESERVED_4 = 10;

  39.     /** Index of reserved field in word 5. */
  40.     private static final int RESERVED_5 = 11;

  42.     /** Index of reserved field in word 6. */
  43.     private static final int RESERVED_6 = 12;

  45.     /** Index of reserved field in word 7. */
  46.     private static final int RESERVED_7 = 13;

  48.     /** Index of reserved field in word 8. */
  49.     private static final int RESERVED_8 = 14;

  51.     /** Index of reserved field A in word 9. */
  52.     private static final int RESERVED_A_9 = 15;

  54.     /** Index of reserved field B in word 9. */
  55.     private static final int RESERVED_B_9 = 16;

  57.     /** Index of reserved field in word 10. */
  58.     private static final int RESERVED_10 = 17;

  60.     /** Simple constructor.
  61.      * @param words raw words
  62.      */
  63.     SubFrame4A(final int[] words) {

  65.         // create raw container
  66.         super(words, RESERVED_10 + 1);

  68.         // populate container
  69.         setField(RESERVED_3,    3,  6, 16, words);
  70.         setField(RESERVED_4,    4,  6, 24, words);
  71.         setField(RESERVED_5,    5,  6, 24, words);
  72.         setField(RESERVED_6,    6,  6, 24, words);
  73.         setField(RESERVED_7,    7,  6, 24, words);
  74.         setField(RESERVED_8,    8,  6, 24, words);
  75.         setField(RESERVED_A_9,  9, 22,  8, words);
  76.         setField(RESERVED_B_9,  9,  6, 16, words);
  77.         setField(RESERVED_10,  10,  8, 22, words);

  79.     }

  81.     /** Get the reserved field in word 3.
  82.      * @return reserved field in word 3
  83.      */
  84.     public int getReserved03() {
  85.         return getField(RESERVED_3);
  86.     }

  88.     /** Get the reserved field in word 4.
  89.      * @return reserved field in word 4
  90.      */
  91.     public int getReserved04() {
  92.         return getField(RESERVED_4);
  93.     }

  95.     /** Get the reserved field in word 5.
  96.      * @return reserved field in word 5
  97.      */
  98.     public int getReserved05() {
  99.         return getField(RESERVED_5);
  100.     }

  102.     /** Get the reserved field in word 6.
  103.      * @return reserved field in word 6
  104.      */
  105.     public int getReserved06() {
  106.         return getField(RESERVED_6);
  107.     }

  109.     /** Get the reserved field in word 7.
  110.      * @return reserved field in word 7
  111.      */
  112.     public int getReserved07() {
  113.         return getField(RESERVED_7);
  114.     }

  116.     /** Get the reserved field in word 8.
  117.      * @return reserved field in word 8
  118.      */
  119.     public int getReserved08() {
  120.         return getField(RESERVED_8);
  121.     }

  123.     /** Get the reserved field A in word 9.
  124.      * @return reserved field A in word 9
  125.      */
  126.     public int getReservedA09() {
  127.         return getField(RESERVED_A_9);
  128.     }

  130.     /** Get the reserved field B in word 9.
  131.      * @return reserved field B in word 9
  132.      */
  133.     public int getReservedB09() {
  134.         return getField(RESERVED_B_9);
  135.     }

  137.     /** Get the reserved field in word 10.
  138.      * @return reserved field in word 10
  139.      */
  140.     public int getReserved10() {
  141.         return getField(RESERVED_10);
  142.     }

  144. }
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