trimble gpsnet 2.5 software for gnss infrastructure: new...
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Trimble GPSNet 2.5 Software for GNSS Infrastructure:
New Features
Martin Janousek - Trimble Technical Support - Infrastructure
GPSNet Users Seminar – Munich, March 30th/31th 2006
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Overview
• Support for large networks• Improved ambiguity resolution• New GLONASS features• RTCM 3 network messages• L2C• IGS site log• Trimble NTRIP Caster• Trimble Ephemeris Download
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Support for large networks
• Up to 100 reference stations and 200 RTCM generators can be processed on one single server
• New technology based on parallelization of filters• For GPS networks only• > 3.5 GHz, 2 GB RAM, dual-processor required.
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Improved ambiguity resolution
• Japanese network– homogene Iono: 96.68 %– first order Iono: 97.73 %– second order: 97.58 %
• Swisstopo network– homogene Iono: 96.68 %– first order Iono: 98.52 %– second order: 98.57 %
• ASCOS network– homogene Iono: 98.03 %– first order Iono: 99.29 %– second order: 99.29 %
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Improved ambiguity resolution
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ho mo gene Io no
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GLONASS
• Supporting new Trimble RS receiver NetR5– GLONASS– L2C– L5– Web interface– New antenna: Zephyr Geodetic 2
• GLONASS Storage for RINEX and dat files• GLONASS is now supported in RINEX Merger and
Virtual RINEX File Generator.
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GLONASS
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GLONASS
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L2C
• PRN17 transmits the new civil L2C signal• L2C provides better signal tracking on rover and
reference receivers• GPSNet 2.5 uses now L2C when available for:
– Improved ambiguity resolution– Improved ionospheric modeling– Improved network corrections
• RINEX 2.11:– Additional oberservable for L2C– Observation identifier for L2C: C2
• Web server / RINEX Shop:– Full support for L2C in RINEX Merger and Virtual
RINEX File Generator.
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L2C
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RTCM 3 network messages
• RTCM 3 network message can be used in:– Broadcast mode = preconfigured master and
auxiliary stations– Dial-in mode (Auto-select Cell = automatic
selection of master and auxiliary stations based on the NMEA rover position)
• Network subdivided in cells• Each cell consists of:
– 1 master station– Up to 31 auxiliary stations
(typically 6-8)
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RTCM 3 network messages
• Messages1014: aux. station info1015: ionospheric correction message 1016: geometric correction message 1017: compressed iono and geo corrections in one message (alternative to 1015/1016)
• Distribute messages over several epochs to reduce bandwidth
• Needs to be enabled in RTKNet processor properties• RTCM Network format is supported for GPS only
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RTCM 3 network messages
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Rover Integrity
• Allows now to run more than one rover receiver at a time
• Complete re-design of the module• Alarms• Rover Integrity Report• Enable report over File / Reporting:
– Init Time Percentage– Init Time Attempts– Init time Statistics– Number of satellites– DOP values– Position Errors– Position Statistics
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Rover Integrity
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IGS site log
• You can now import and export IGS site logs to update reference station information
• Enables you to easily exchange station information between service providers
• Following information are provided:– Site identification of the monument– Site Location Information– GNSS Receiver and Antenna information
• Format defined by the IGS Central Bureau: igscb.jpl.nasa.gov/igscb/station/general/blank.log
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Trimble NTRIP Caster
• Replacement for NTRIP Functionality in iGate Module• Support of several NTRIP ports• Import of iGate mountpoints possible• Support of multiple network cards• Support TCP/IP and UDP for communication• New colomn in Users.mdb (table: PWD) after updated
DB from 2.4 to 2.5 "MaxNtripConn"• User Authentication:
– Support of digest authentication– Support of multiple users with same password
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Trimble Ephemeris Download
• New tool to download ultra-rapid orbits from the Internet via FTP/HTTP
• Replaces old tcl scripts• Windows UI
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Questions