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https://github.com/gnss-sdr/gnss-sdr
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91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/*!
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* \file rtklib_preceph.h
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* \brief precise ephemeris and clock 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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*
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* References :
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* [1] S.Hilla, The Extended Standard Product 3 Orbit Format (SP3-c),
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* 12 February, 2007
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* [2] J.Ray, W.Gurtner, RINEX Extensions to Handle Clock Information,
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* 27 August, 1998
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* [3] D.D.McCarthy, IERS Technical Note 21, IERS Conventions 1996, July 1996
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* [4] D.A.Vallado, Fundamentals of Astrodynamics and Applications 2nd ed,
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* Space Technology Library, 2004
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_RTKLIB_PRECEPH_H
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#define GNSS_SDR_RTKLIB_PRECEPH_H
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#include "rtklib.h"
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const int NMAX = 10; /* order of polynomial interpolation */
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const double MAXDTE = 900.0; /* max time difference to ephem time (s) */
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const double EXTERR_CLK = 1e-3; /* extrapolation error for clock (m/s) */
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const double EXTERR_EPH = 5e-7; /* extrapolation error for ephem (m/s^2) */
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int code2sys(char code);
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int readsp3h(FILE *fp, gtime_t *time, char *type, int *sats,
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double *bfact, char *tsys);
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int addpeph(nav_t *nav, peph_t *peph);
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void readsp3b(FILE *fp, char type, int *sats, int ns, const double *bfact,
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char *tsys, int index, int opt, nav_t *nav);
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int cmppeph(const void *p1, const void *p2);
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void combpeph(nav_t *nav, int opt);
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void readsp3(const char *file, nav_t *nav, int opt);
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int readsap(const char *file, gtime_t time, nav_t *nav);
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int readdcbf(const char *file, nav_t *nav, const sta_t *sta);
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int readdcb(const char *file, nav_t *nav, const sta_t *sta);
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double interppol(const double *x, double *y, int n);
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int pephpos(gtime_t time, int sat, const nav_t *nav, double *rs,
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double *dts, double *vare, double *varc);
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int pephclk(gtime_t time, int sat, const nav_t *nav, double *dts,
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double *varc);
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void satantoff(gtime_t time, const double *rs, int sat, const nav_t *nav,
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double *dant);
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int peph2pos(gtime_t time, int sat, const nav_t *nav, int opt,
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double *rs, double *dts, double *var);
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#endif // GNSS_SDR_RTKLIB_PRECEPH_H
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