An Open Source GNSS Software Defined Radio Library
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README.md

GNSS-SDRLIB v2.0 Beta

An Open Source GNSS Software Defined Radio Library

Author

Taro Suzuki
E-Mail: gnsssdrlib@gmail.com HP: http://www.taroz.net

Features

  • GNSS signal processing functions written in C
    • Code generations
    • Signal acquisition / tracking
    • Decoding navigation messages
    • Pseudo-range / carrier phase mesurements
  • GUI application (AP) written in C++/CLI
  • Visualization of GNSS signal processing in real-time
  • Real-time positioning with RTKLIB (http://www.rtklib.com/)
  • Observation data can be outputted in RINEX or RTCM format
  • Support following signals (tracking and decoding navigation message)
    • GPS L1CA
    • GLONASS G1
    • Galileo E1B
    • BeiDou B1I
    • QZSS L1CA/SAIF/LEX
    • SBAS L1
  • Support following front-ends for real-time positioning
  • Support RF binary file for post processing

System Requirements

  • GNSS-SDRLIB v2.0 only works in 64-bit Windows
  • The CLI/GUI applications are built with Microsoft Visual Studio Express 2012
  • SIMD SSE2 supported CPU (Pentium IV and later processor) is required

Directory and Files

./bin                   Executable APs for Windows  
    ./gnss-sdrcli.exe   Real-time GNSS signal processing AP (CLI)  
    ./gnss-sdrcli.ini   Configuration file for CLI AP  
    ./gnss-sdrgui.exe   Real-time GNSS signal processing AP (GUI)  
    ./frontend          Directory of front-end configuration files  
    ./cli               Command line interface  
    ./windows           VS2012 project of CLI AP (for Windows)  
./linux                 Makefile of CLI AP (for Linux)  
./gui                   VS2012 project of GUI AP (for Windows)  
./src                   Library source codes  
    ./sdr.h             Library header file  
    ./sdracq.c          Functions related to signal acquisition  
    ./sdrcmn.c          Functions related to SIMD operation  
    ./sdrcode.c         Functions related to generation of ranging code  
    ./sdrinit.c         Functions related to initialization/end process  
    ./sdrlex.c          Functions related to QZSS LEX decoding  
    ./sdrmain.c         Main function  
    ./sdrnav.c          Functions related to navigation data  
    ./sdrnav_gps.c      Functions related to decoding GPS nav. data  
    ./sdrnav_glo.c      Functions related to decoding GLONASS nav. data  
    ./sdrnav_gal.c      Functions related to decoding Galileo nav. data  
    ./sdrnav_bds.c      Functions related to decoding BeiDou nav. data  
    ./sdrnav_sbs.c      Functions related to decoding SBAS nav. data  
    ./sdrout.c          Functions related to RINEX/RTCM outputs  
    ./sdrplot.c         Functions related to plot graph  
    ./sdrrcv.c          Functions related to receiving RF data  
    ./sdrspec.c         Functions related to spectrum analysis  
    ./sdrsync.c         Functions related to generating observation data  
    ./sdrtrk.c          Functions related to signal tracking  
    ./rcv               Source codes related to front-end  
./lib                   Source codes related to used library  
./test                  Test data  
    ./data              Test IF data  
    ./output            Default RINEX output directory  

How to use

See manual or support page http://www.taroz.net/gnsssdrlib_e.html

License

Copyright (C) 2014 Taro Suzuki gnsssdrlib@gmail.com

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA