PCodeConst.hpp

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//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
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//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
//
//==============================================================================
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin, under contract to an agency or agencies
//  within the U.S. Department of Defense. The U.S. Government retains all
//  rights to use, duplicate, distribute, disclose, or release this software.
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//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
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//==============================================================================
 
//  PCodeConst.hpp - Constants for GPS X-register manipulation
//#define PCODE_DEBUG
 
#ifndef PCodeConst_HPP
#define PCodeConst_HPP
 
namespace gnsstk
{
 
   enum codeType { P_CODE, Y_CODE, BOTH };
 
   const int MAX_BIT = 32;
 
   const int MAX_PRN_CODE = 210;
 
   const int X1_PER_DAY = 57600;
 
   const long NUM_6SEC_WORDS = 1918125;
 
   const long NUM_X2_WORDS   = 1918131;
 
   const unsigned int X1A_INIT = 0x0248;
   const unsigned int X1B_INIT = 0x0554;
   const unsigned int X2A_INIT = 0x0925;
   const unsigned int X2B_INIT = 0x0554;
 
   const unsigned int X1A_TAPS = 0x0CA0;
   const unsigned int X1B_TAPS = 0x0F93;
   const unsigned int X2A_TAPS = 0x0FDD;
   const unsigned int X2B_TAPS = 0x098E;
 
   const int XA_MAX_EPOCH = 3750;
   const int XB_MAX_EPOCH = 3749;
 
   const int XA_COUNT = 4092;
   const int XB_COUNT = 4093;
 
   const long XA_EPOCH_DELAY  =   0;
   const long XB_EPOCH_DELAY  = 343;
 
   const long X2A_EPOCH_DELAY = 37;
} // namespace
 
#endif