BKG NTRIP Client update coming April 18

April 6, 2016  - By

A new version 2.12 of the BKG NTRIP Client (BNC) will be available on April 18.

Originally developed in cooperation of the Federal Agency for Cartography and Geodesy (BKG) and the Czech Technical University (CTU) with a focus on multi-stream real-time access to GNSS observations, the software has been substantially extended.

The BKG Ntrip Client is an open source multi-stream client program designed for a variety of real-time GNSS applications. It was primarily designed for receiving data streams from any NTRIP supporting broadcaster. The program handles the HTTP communication and transfers received GNSS data to a serial or IP port feeding networking software or a DGPS/RTK application. In previous years, BNC has been enriched with RINEX quality and editing functions.

BNC on a Mac system for static real-time precise point positioning with Google Maps, such as for early warning of natural hazards.

BNC on a Mac system for static real-time precise point positioning with Google Maps, such as for early warning of natural hazards.

Its primary objective is the promotion of open standards as recommended by the Radio Technical Commission for Maritime Services (RTCM). Implemented RTCM messages comprise satellite orbit and clock corrections, code and phase observation biases, and the Vertical Total Electron Content (VTEC) of the ionosphere.

Beside its graphical user interface, the real-time software for Windows, Linux and Mac platforms now comes with complete command line interface and considerable post-processing functionality. RINEX Version 3 file editing and quality check with full support of Galileo, BeiDou and SBAS — besides GPS and GLONASS — are among the new features.

Comparison of satellite orbit/clock files in SP3 format is another new feature of BNC.

BNC version 2.12 now allows a simultaneous multi-station Precise Point Positioning (PPP) for real-time displacement-monitoring of entire reference station networks.

BNC version 2.12 generates RINEX version 3.03 observation and navigation files to support near real-time GNSS post processing applications. Whenever BNC starts to generate RINEX observation files, it first tries to retrieve information needed for RINEX headers from so-called public RINEX skeleton files (skl files), which are derived from site logs. Therefore, BKG provides the current system observation types (sot files) per station. From April 18 onward, the sot files with BDS frequency bands consistent to the definition in RINEX version 3.03 will be provided.

Old configuration files cannot be used without problems. Nevertheless, BNC 2.12 download is coming out with a large set of examples for all the different applications, which can be easily adapted introducing a valid user account.

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