文档介绍：COMMITTEE DRAFT for VOTE (CDV)
Networked Transport of RTCM via Internet Protocol (Ntrip)
VERSION
DEVELOPED BY
RTCM SPECIAL COMMITTEE NO. 104
JANUARY 30, 2004
COPYRIGHTÓ2004 RTCM
Radio Technical Commission For Maritime Services
1800 Diagonal Road, Suite 600
Alexandria, Virginia 22314-2840 .
E-Mail: ******@
Web Site:
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GENERAL NOTE
Networked Transport of RTCM via Internet Protocol (Ntrip) stands for an application-level protocol streaming Global Navigation Satellite System (GNSS) data over the Internet. Ntrip is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/. The HTTP objects are enhanced to GNSS data streams.
Ntrip is designed for disseminating differential correction data or other kinds of GNSS streaming data to stationary or mobile users over the Internet, allowing simultaneous PC, Laptop, PDA, or receiver connections to a broadcasting host. Ntrip supports wireless Internet access through Mobile IP Networks like GSM, GPRS, EDGE, or UMTS.
Ntrip consists of three system software components: NtripClients, NtripServers and NtripCasters. The NtripCaster is the actual HTTP server program whereas NtripClient and NtripServer are acting as HTTP clients.
Ntrip is meant to be an open none-proprietary protocol. Major characteristics of Ntrip’s dissemination technique are:
Based on the popular HTTP streaming standard; comparatively easy to implement when having limited client and server platform resources available.
Application not limited to one particular plain or coded stream content; ability to distribute any kind of GNSS data.
Potential to support mass usage; disseminating hundreds of streams simultaneously for up to a thousand users is possible when applying modified Internet Radio broadcasting software.
Regarding security needs; stream provider