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RAS Toolbox List of
modules and programs
To go to one of the below section
click the desired link.
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(1)
General Data Processing for (Yuma, SEM,
SP3, RINEX) Data Files
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xread_sem |
main program reading SEM almanac data
and creating two data files |
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xread_sp3 |
main program reading the SP3 data
file and creating three data files |
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xread_yuma |
main program reading Yuma almanac
data and creating two data files |
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xwrite_yuma |
main program writing the Yuma format
almanac file |
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xrinexn |
main program reads a RINEX 2
navigation message data file and writes the data into four text files |
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xrinexn_select |
main program reads a RINEX 2
navigation message data file and writes the data into four text files; the
reduced almanac and ephemeris data files are storing the data within the
selected time interval |
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xrinexo |
main program reads a RINEX 2
observation message file and writes the data into two text files (header and
observation data only) |
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xrinexo_select |
main program reads a RINEX 2
observation message file and writes the data into two text files (header and
observation data only); the reduced observation data file is storing only
the data within the selected time interval |
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xrinex_obs |
main program executing graphs related to the
satellites data provided into the reduced observation data file generated by
the program
xrinexo |
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xsv_pv_plot_almanac |
main program executing graphs related to the
position and velocity when the reduced almanac data is provided |
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xsv_pv_plot_ephemeris |
main program executing graphs related to the
position and velocity when the reduced ephemeris data is provided |
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xsv_pv_plot_sp3 |
main program executing graphs related to the
position and velocity provided into a sp3 file |
(2) GPS Orbit Data Analysis
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xsv_comparison_almanac |
main program executing the satellites
position/velocity comparison when two almanacs data are provided |
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xsv_comparison_almanac_ephemeris |
main program executing the satellites
position/velocity comparison when almanac and ephemeris data are provided |
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xsv_comparison_almanac_sv_orbit |
main program executing the satellites
position/velocity comparison when almanac and sp3 orbit data are provided |
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xsv_comparison_ephemeris |
main program executing the satellites
position/velocity comparison when two ephemeris data are provided |
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xsv_comparison_ephemeris_sv_orbit |
main program executing the satellites
position/velocity comparison when ephemeris and sp3 orbit data are provided |
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xsv_comparison_sv_orbit |
main program executing the satellites
position/velocity comparison when two sp3 orbit data are provided |
(3)
User Position Determination
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xuposr |
main program computing user position based on
RINEX 2 navigation and observation data; no atmospheric corrections are
applied |
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xuposra |
main program computing user position based on
RINEX 2 navigation and observation data; iono and tropo corrections are
applied |
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xuposrp |
main program computing user position based on
RINEX 2 navigation and observation data; dual frequency P-code iono and
tropo corrections are applied |
(4) Utility Modules
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convcon |
setting of most used conversion constants |
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elevaz |
computation of elevation and azimuth angles,
ECEF unit line of sight vector and range |
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geoidh |
computation of WGS-84 geoid height correction |
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gpscon |
setting of most used GPS constants |
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ionoc |
computation of L1 iono correction for a
specified user by using the Klobuchar model |
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pionoc |
computation of pseudorange corrected for
ionospheric effects |
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prn2svn |
determination of the GPS satellite number for
a specified GPS pseudorandom number |
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rms |
computation of root mean square (RMS) of a
sample |
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selectd |
selection of the different elements from a
specified array |
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svclockc |
computation of satellite clock correction |
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svn2prn |
determination of the GPS pseudorange number
for a specified GPS satellite number |
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svpalm |
determination of ECEF satellite position based
on almanac data |
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svpeph |
determination of ECEF satellite position based
on ephemeris data |
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svpvalm |
determination of ECEF satellite position and
velocity based on almanac data |
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svpveph |
determination of ECEF satellite position and
velocity based on ephemeris data |
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tecefgd |
ECEF to geodetic coordinates (direct method) |
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tropoc1 |
computation of the troposheric correction for
a specified user by using a simplified model |
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uposit |
computation of user's position from at least
four ECEF satellite positions and the corresponding pseudoranges, by using a
direct method |
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vecefenu |
transformation from ECEF to ENU frames for a
given position vector and referenced latitude/longitude angles |
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wgs84con |
setting of most used WGS-84 constants |
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ymd2gps |
determination of (GPS week, GPS roll number,
day of week) from (year, month, day) |
Copyright(C) 1996-2010 L3NAV Systems, All Rights Reserved Worldwide.
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