Opensource GNSS Projects

 GNSS是Global Navigation SatelliteSystem的缩写。中文译名应为全球导航卫星系统。目前，GNSS包含了美国的GPS、俄罗斯的GLONASS、中国的Compass(北斗)、欧盟的Galileo系统，可用的卫星数目达到100颗以上。
   这里收集GNSS相关的开源工程，收集较多的是接收机相关的，也有位置监控的，后续逐步添加其他的如GIS相关等。

1. 开源的GNSS软件接收机 GNSS Software Defined Receiver
   GNSS-SDR provides a common framework for GNSS signal processingwhich can operate in a variety of computer platforms.
   http://gnss-sdr.org/
   Language:   C
2. gpsTk 
   provide an open source library and suite of applications to thesatellite navigation community.
   http://www.gpstk.org/
   Language:   C++
3. RTKLIB 开源的高精度定位算法库
   RTKLIB is an open source program package for standard and precisepositioning with GNSS.
   http://rtklib.com/
   Language:   C
4. goGPS
   goGPS is a software package designed to improve the positioningaccuracy of low-cost GPS devices by RTK technique and with the aidof a DTM.
   http://www.gogps-project.org/
   Language:   Matlab and Java
5. GNU Radio开源的软件无线电
   GNU Radio is a free & open-source softwaredevelopment toolkit that provides signal processing blocks toimplement software radios.
   http://gnuradio.org/
   Language:   Python and C++
6. OSGRS (Open Source GNSS Reference Server)
   OSGRS is an Open Source project to develop the software andprotocols for operating an Assisted-GNSS (A-GNSS) server connectedto one or more reference stations.
   http://sourceforge.net/projects/osgrs/
   Language:   Java
7. GPL-GPS
   GPL-GPS (“General Public License”-GPS) project, an effort to bringfree and open source software to inexpensive,commercially-available OEM (Original Equipment Manufacturer) GPSreceiver boards
   http://gps.psas.pdx.edu/
   Language:   C
8. FastGps provideopensource gps receiver
9. OpenSourceGPS an opensource gps write in Clanguage  that works withhardware correlators
10. http://www.gpscreations.com anopensource gps include acquire and pvt

• OpenGTS 基于WEB的位置监控系统
  OpenGTS™ (“Open GPS Tracking System”) is the first available opensource project designed specifically to provide web-based GPStracking services for a “fleet” of vehicles.
  http://opengts.sourceforge.net/
  Language:   Java
• OpenDMTP
  OpenDMTP is a protocol/framework that allows communications withsmall devices.
  http://opendmtp.sourceforge.net/
  Language:   C
• http://swiftnav.com/piksi.html   开源Piksi RTK GPS接收器问世 定位精确到厘米！