mirror of https://github.com/gnss-sdr/gnss-sdr
71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
/*!
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* \file rtklib_ionex.h
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* \brief ionex functions
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* \authors <ul>
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* <li> 2007-2013, T. Takasu
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* <li> 2017, Javier Arribas
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* <li> 2017, Carles Fernandez
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* </ul>
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*
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* This is a derived work from RTKLIB http://www.rtklib.com/
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* The original source code at https://github.com/tomojitakasu/RTKLIB is
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* released under the BSD 2-clause license with an additional exclusive clause
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* that does not apply here. This additional clause is reproduced below:
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*
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* " The software package includes some companion executive binaries or shared
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* libraries necessary to execute APs on Windows. These licenses succeed to the
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* original ones of these software. "
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*
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* Neither the executive binaries nor the shared libraries are required by, used
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* or included in GNSS-SDR.
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*
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* -----------------------------------------------------------------------------
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* Copyright (C) 2007-2013, T. Takasu
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* Copyright (C) 2017, Javier Arribas
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* Copyright (C) 2017, Carles Fernandez
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* References:
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* [1] S.Schear, W.Gurtner and J.Feltens, IONEX: The IONosphere Map EXchange
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* Format Version 1, February 25, 1998
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* [2] S.Schaer, R.Markus, B.Gerhard and A.S.Timon, Daily Global Ionosphere
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* Maps based on GPS Carrier Phase Data Routinely produced by CODE
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* Analysis Center, Proceeding of the IGS Analysis Center Workshop, 1996
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_RTKLIB_IONEX_H
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#define GNSS_SDR_RTKLIB_IONEX_H
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#include "rtklib.h"
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const double VAR_NOTEC = 30.0 * 30.0; /* variance of no tec */
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const double MIN_EL = 0.0; /* min elevation angle (rad) */
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const double MIN_HGT = -1000.0; /* min user height (m) */
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int getindex(double value, const double *range);
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int nitem(const double *range);
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int dataindex(int i, int j, int k, const int *ndata);
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tec_t *addtec(const double *lats, const double *lons, const double *hgts,
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double rb, nav_t *nav);
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void readionexdcb(FILE *fp, double *dcb, double *rms);
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double readionexh(FILE *fp, double *lats, double *lons, double *hgts,
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double *rb, double *nexp, double *dcb, double *rms);
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int readionexb(FILE *fp, const double *lats, const double *lons,
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const double *hgts, double rb, double nexp, nav_t *nav);
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void combtec(nav_t *nav);
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void readtec(const char *file, nav_t *nav, int opt);
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int interptec(const tec_t *tec, int k, const double *posp, double *value,
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double *rms);
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int iondelay(gtime_t time, const tec_t *tec, const double *pos,
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const double *azel, int opt, double *delay, double *var);
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int iontec(gtime_t time, const nav_t *nav, const double *pos,
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const double *azel, int opt, double *delay, double *var);
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#endif // GNSS_SDR_RTKLIB_IONEX_H
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