ord.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
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//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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//  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
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//  DISTRIBUTION STATEMENT A: This software has been approved for public
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//==============================================================================
 
/*
 * ord.hpp - ORD Header File
 *
 * This file should expose all of the 'atomic' entry points for calculating the Observed Range Deviation.
 *
 * Still to do:
 *   - Rename raw_range_x() methods to more appropriate names.
 *   - Replace raw_range index with proper enumeration.
 */
 
#ifndef CORE_LIB_ORD_ORD_HPP_
#define CORE_LIB_ORD_ORD_HPP_
 
#include <vector>
 
#include "IonoModelStore.hpp"
#include "CommonTime.hpp"
#include "SatID.hpp"
#include "Position.hpp"
#include "NavLibrary.hpp"
#include "TropModel.hpp"
 
namespace gnsstk {
namespace ord {
 
double IonosphereFreeRange(const std::vector<double>& frequencies,
        const std::vector<double>& pseudoranges);
 
double IonosphereModelCorrection(const gnsstk::IonoModelStore& ionoModel,
        const gnsstk::CommonTime& time, CarrierBand band,
        const gnsstk::Position& rxLoc, const gnsstk::Xvt& svXvt);
 
gnsstk::Xvt getSvXvt(const gnsstk::SatID& sat_id, const gnsstk::CommonTime& time,
        NavLibrary& ephemeris);
 
double RawRange1(const gnsstk::Position& rx_loc, const gnsstk::SatID& sat_id,
        const gnsstk::CommonTime& time,
        NavLibrary& ephemeris, gnsstk::Xvt& sv_xvt);
 
double RawRange2(double pseudorange, const gnsstk::Position& rx_loc,
        const gnsstk::SatID& sat_id, const gnsstk::CommonTime& time,
        NavLibrary& ephemeris, gnsstk::Xvt& sv_xvt);
 
double RawRange3(double pseudorange, const gnsstk::Position& rx_loc,
        const gnsstk::SatID& sat_id, const gnsstk::CommonTime& time,
        NavLibrary& ephemeris, gnsstk::Xvt& sv_xvt);
 
double RawRange4(const gnsstk::Position& rx_loc, const gnsstk::SatID& sat_id,
        const gnsstk::CommonTime& time,
        NavLibrary& ephemeris, gnsstk::Xvt& sv_xvt);
 
double SvClockBiasCorrection(const gnsstk::Xvt& svXvt);
 
// Calculate the range delta due to relativistic effects
// Note: Most of the work is actually done by the Xvt object.
double SvRelativityCorrection(gnsstk::Xvt& svXvt);
 
double TroposphereCorrection(const gnsstk::TropModel& trop_model,
        const gnsstk::Position& rx_loc, const gnsstk::Xvt& sv_xvt);
 
/*
double calculate_ord(const std::vector<CarrierBand>& bands,
        const std::vector<double>& pseudoranges,
        const gnsstk::Position& rx_loc,
        const gnsstk::SatID& sat_id,
        const gnsstk::CommonTime& transmit_time,
        const gnsstk::CommonTime& receive_time,
        const gnsstk::IonoModelStore& iono_model,
        const gnsstk::TropModel& trop_model,
        NavLibrary& ephemeris,
        int range_method);
 */
 
}  // namespace ord
}  // namespace gnsstk
 
#endif  // CORE_LIB_ORD_ORD_HPP_