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Networked Transport of RTCM via Internet Protocol

Protocol for streaming GPS corrections

Summary

Protocol for streaming GPS corrections

The Networked Transport of RTCM via Internet Protocol (NTRIP) is a protocol for streaming differential GPS (DGPS) corrections over the Internet for real-time kinematic positioning. NTRIP is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/1.1 and is enhanced for GNSS data streams.

The specification is standardized by the Radio Technical Commission for Maritime Services (RTCM). NTRIP was developed by the German Federal Agency for Cartography and Geodesy (BKG) and the Dortmund University Department of Computer Science. Ntrip was released in September 2004. The 2011 version of the protocol is version 2.0.

NTRIP used to be an open standard protocol but it is not available freely (as of 2020). There is an open source implementation available from software.rtcm-ntrip.org from where the protocol can be reverse-engineered.

References

References

  1. Lenz, Elmar. (2004). "Networked Transport of RTCM via Internet Protocol (NTRIP) – Application and Benefit in Modern Surveying Systems". FIG Working Week 2004.
  2. Grauberger, Erik. (2025-11-10). "What is NTRIP? RTCM Corrections for GNSS Rovers".
  3. [https://web.archive.org/web/20160329165844/http://www.bkg.bund.de/EN/Home/homepage__node.html__nnn=true BKG]
  4. [http://www.cs.uni-dortmund.de/nps/en/Home/index.html Uni Dortmund] {{Webarchive. link. (2012-01-02)
  5. [http://igs.bkg.bund.de/root_ftp/NTRIP/documentation/NtripPressRelease.pdf "RTCM Recommended Standards for Networked Transport of RTCM via Internet Protocol (Ntrip), Version 1.0"] {{Webarchive. link. (2006-10-24)
  6. [https://web.archive.org/web/20160304071708/https://ssl29.pair.com/dmarkle/puborder.php?show=3 Version 2.0 with Amendment 1, June 28, 2011]
  7. The "public version" of the protocol is missing all protocol details and examples, and refers to purchase the document from RTCM; it can be downloaded from [http://igs.bkg.bund.de/root_ftp/NTRIP/documentation/NtripDocumentation.pdf BKG] {{Webarchive. link. (2006-10-24 .)
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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