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Hexagon Correction Services

Hexagon Correction Services have been operational in the market for 30 years delivering clock and orbit corrections over the L-Band or IP for land, airborne and near-shore applications. Our redundant infrastructure provides the reliability that autonomous vehicles require for safe operation.


TerraStar X Technology 

Data Provided  Orbits
Phase Biases
Phase Biases
Geographical Coverage  Continental Scope   Continental Scope
Time to Resolve  15 to 45 minutes  Less than a minute 
Accuracy  5 cm  5 cm 


TerraStar X Technology

TerraStar X correction technology eliminates convergence time while providing high accuracy global positioning to enable instant lane-level accuracy in autonomous automotive applications. Available over satellite using Ligado’s SkyTerra satellite or through cellular networks, TerraStar X will position vehicles with 5-centimetre accuracy in under a minute. When combined with GNSS receivers available through Hexagon Positioning Intelligence, this technology allows automotive customers to evaluate positioning performance in real-time.


  • Delivers lane–level (<50 cm) accuracy throughout entire coverage area in less than one minute
  • Scalable for high volume of users
  • Received through either GNSS or over IP/Cellular
  • Reliability and available for 24/7/365 all-weather operations
  • Lower bandwidth requirements vs. RTK


TerraStar X Technology Testbeds

Evaluate the benefits of TerraStar X technology for precise localization in automotive applications at test beds across North America and in Europe. Trial networks are currently available in California, Arizona, and Michigan over satellite or cellular network, and in Germany using cellular delivery. Commercial solutions designed uniquely for the automotive market will be available in 2019.

California Testbed  Germany Testbed  Michigan Testbed 

Contact our team of sales experts to discover how Hexagon Positioning Intelligence can fit into your autonomous solution. 

The Drive to Autonomy

AutonomouStuff has taken autonomous platforms to new levels using Hexagon PI and NovAtel technology. Watch this video to learn more about the key components of their Lexus and Lincoln MKZ autonomous platforms, and how the newly announced TerraStar X can provide instant lane-level accuracy in under a minute.