GenXSequence.hpp

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#pragma ident "$Id: GenXSequence.hpp 2943 2011-10-25 17:17:11Z yanweignss $"



//  GenXSequence.hpp -  Generate X Sequence class.

#ifndef GENXSEQUENCE_HPP
#define GENXSEQUENCE_HPP

//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================

//============================================================================
//
//This software 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. 
//
//Pursuant to DoD Directive 523024 
//
// DISTRIBUTION STATEMENT A: This software has been approved for public 
//                           release, distribution is unlimited.
//
//=============================================================================


#include "gpstkplatform.h"
#include "PCodeConst.hpp"
#include "mergePCodeWords.h"

namespace gpstk
{
   
      // Derived from X2A maximum length (see xconst.hpp) 
   const int MAX_WORD = 140;

   class GenXSequence
   {
      public:
         GenXSequence( const unsigned int initialState, 
                       const unsigned int taps,
                       const          int initialEndOfSequence,
                       const          int max_delay );
         ~GenXSequence( ) {};
         
         uint32_t operator[] ( int i );
         
         void setLengthOfSequence( int i );
      
      private:
         void addBitToSequence( uint32_t newBit );
         uint32_t bits[MAX_WORD];
         int lengthOfSequence;
         int maxOfSequence;
         bool debugPrint;
         int word_num;
         int bit_num;
   };
}     // end of namespace
#endif // GENXSEQUENCE_HPP

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