Networked Transport of RTCM via Internet Protocol

The Networked Transport of RTCM via Internet Protocol (NTRIP) is a protocol for streaming differential GPS (DGPS) data over the Internet in accordance with specification sold by RTCM.[1] NTRIP is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/1.1 and is enhanced for GNSS data streams.[2]

NTRIP was developed by the German Federal Agency for Cartography and Geodesy (BKG[3]) and the Dortmund University Department of Computer Science.[4] Ntrip was released in September 2004.[5] The 2011 version of the protocol is version 2.0.[6]

NTRIP used to be[7] 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
  1. "about NTRIP". Retrieved 17 January 2012.
  2. Lenz, Elmar (2004). "Networked Transport of RTCM via Internet Protocol (NTRIP) – Application and Benefit in Modern Surveying Systems" (PDF). FIG Working Week 2004.
  3. BKG
  4. Uni Dortmund
  5. "RTCM Recommended Standards for Networked Transport of RTCM via Internet Protocol (Ntrip), Version 1.0"
  6. 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 BKG.
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