Whitepaper: Comparing NRT GNSS Post-Processing with Common Correction Services

Published: 27 Mar 2019

NovAtel GNSS correction whitepaperNovAtel, a leading provider of high-precision GNSS positioning technology for unmanned aerial vehicles (UAVs) and other unmanned platforms, has released a whitepaper comparing the performance of its Waypoint GNSS post-processing software, which incorporates a TerraStar Near-Real-Time (NRT) license, with the performance of other common correction services with longer latency.

Download the full whitepaper from NovAtel’s website

NRT enhancements provide:

  • Fast availability (~15-minute latency)
  • High reliability and redundancy
  • Multi-constellation (GPS, GLONASS, BeiDou, Galileo, QZSS) support
  • High rate corrections (good for low noise kinematic trajectories)

The paper gives details of:

  • Performance evaluation of Static Precise Point Positioning (PPP), which demonstrates base station coordinate determination accuracy
  • Performance evaluation of Kinematic PPP, using aerial survey testing to demonstrate accuracy with respect to a reference solution

The test results show that both static and kinematic performance demonstrate similar accuracy no matter whether TerraStar NRT products, with only a 15-minute latency, or other products with 12-18 day latency are used. NRT subscriptions can therefore be invaluable to users requiring base station coordinate determination as quickly as possible after data collection, or a quick turnaround without sacrificing the quality of results delivered.

To find out more, download the whitepaper from NovAtel’s website.

Posted by Mike Ball Mike is our resident technical editor here at Unmanned Systems Technology. Combining his passions for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years.

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