mirror of
https://github.com/gnss-sdr/gnss-sdr
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126 lines
5.9 KiB
C
126 lines
5.9 KiB
C
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/*!
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* \file rtklib_ephemeris.h
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* \brief satellite 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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* history : 2010/07/28 1.1 moved from rtkcmn.c
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* added api:
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* eph2clk(),geph2clk(),seph2clk(),satantoff()
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* satposs()
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* changed api:
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* eph2pos(),geph2pos(),satpos()
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* deleted api:
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* satposv(),satposiode()
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* 2010/08/26 1.2 add ephemeris option EPHOPT_LEX
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* 2010/09/09 1.3 fix problem when precise clock outage
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* 2011/01/12 1.4 add api alm2pos()
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* change api satpos(),satposs()
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* enable valid unhealthy satellites and output status
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* fix bug on exception by glonass ephem computation
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* 2013/01/10 1.5 support beidou (compass)
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* use newton's method to solve kepler eq.
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* update ssr correction algorithm
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* 2013/03/20 1.6 fix problem on ssr clock relativitic correction
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* 2013/09/01 1.7 support negative pseudorange
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* fix bug on variance in case of ura ssr = 63
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* 2013/11/11 1.8 change constant MAXAGESSR 70.0 -> 90.0
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* 2014/10/24 1.9 fix bug on return of var_uraeph() if ura<0||15<ura
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* 2014/12/07 1.10 modify MAXDTOE for qzss,gal and bds
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* test max number of iteration for Kepler
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* 2015/08/26 1.11 update RTOL_ELPLER 1E-14 -> 1E-13
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* set MAX_ITER_KEPLER for alm2pos()
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*-----------------------------------------------------------------------------*/
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#ifndef RTKLIB_EPHEMERIS_H_
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#define RTKLIB_EPHEMERIS_H_
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#include "rtklib.h"
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#include "rtklib_rtkcmn.h"
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#include "rtklib_sbas.h"
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#include "rtklib_preceph.h"
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double var_uraeph(int ura);
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double var_urassr(int ura);
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void alm2pos(gtime_t time, const alm_t *alm, double *rs, double *dts);
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double eph2clk(gtime_t time, const eph_t *eph);
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void eph2pos(gtime_t time, const eph_t *eph, double *rs, double *dts,
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double *var);
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void deq(const double *x, double *xdot, const double *acc);
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void glorbit(double t, double *x, const double *acc);
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double geph2clk(gtime_t time, const geph_t *geph);
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void geph2pos(gtime_t time, const geph_t *geph, double *rs, double *dts,
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double *var);
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double seph2clk(gtime_t time, const seph_t *seph);
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void seph2pos(gtime_t time, const seph_t *seph, double *rs, double *dts,
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double *var);
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eph_t *seleph(gtime_t time, int sat, int iode, const nav_t *nav);
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geph_t *selgeph(gtime_t time, int sat, int iode, const nav_t *nav);
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seph_t *selseph(gtime_t time, int sat, const nav_t *nav);
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int ephclk(gtime_t time, gtime_t teph, int sat, const nav_t *nav,
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double *dts);
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//satellite position and clock by broadcast ephemeris
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int ephpos(gtime_t time, gtime_t teph, int sat, const nav_t *nav,
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int iode, double *rs, double *dts, double *var, int *svh);
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int satpos_sbas(gtime_t time, gtime_t teph, int sat, const nav_t *nav,
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double *rs, double *dts, double *var, int *svh);
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int satpos_ssr(gtime_t time, gtime_t teph, int sat, const nav_t *nav,
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int opt, double *rs, double *dts, double *var, int *svh);
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int satpos(gtime_t time, gtime_t teph, int sat, int ephopt,
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const nav_t *nav, double *rs, double *dts, double *var,
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int *svh);
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void satposs(gtime_t teph, const obsd_t *obs, int n, const nav_t *nav,
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int ephopt, double *rs, double *dts, double *var, int *svh);
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#endif /* RTKLIB_EPHEMERIS_H_ */
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