convhelp.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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//  any later version.
//
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//  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 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.
//
//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
//
//==============================================================================
 
#ifndef GNSSTK_CONVHELP_HPP
#define GNSSTK_CONVHELP_HPP
 
#include "EllipsoidModel.hpp"
 
namespace gnsstk
{
 
   inline double cycles2meters(double phase, double freq, EllipsoidModel& ellipsoid)
   {
      return ellipsoid.c()/freq * phase;
   }
 
   inline double meters2cycles(double range, double freq, EllipsoidModel& ellipsoid)
   {
      return freq/ellipsoid.c() * range;
   }
 
   inline double cel2far(double c)
   {
      return 9.0 / 5.0 * c + 32;
   }
 
   inline double far2cel(double f)
   {
      return 5.0 / 9.0 * (f - 32);
   }
 
   inline double mb2hg(double mb)
   {
      return mb / 33.8638815789;
   }
 
   inline double hg2mb(double hg)
   {
      return hg * 33.8638815789;
   }
 
 
} // namespace
 
#endif