SPAN® Land Vehicle Profile

NovAtel’s intelligent vehicle dynamics modeling and our patented Antenna Phase Windup technology come together in NovAtel’s SPAN Land Vehicle firmware to provide accurate position, velocity and attitude. 


  • Continuous position, velocity and attitude output through extended GNSS outage
  • Enhanced navigation performance in low dynamic applications
  • SPAN intelligent vehicle dynamics modeling
  • Patented Antenna Phase Windup technology
  • Available for all SPAN supported IMUs

The below table depicts the average SPAN Land Vehicle performance at 1 hour of complete GNSS outage during typical driving conditions at an average speed of 65 km/hr. Position errors are represented in percent Error Over Distance Traveled (EDT). 

IMU Grade Average EDT (%) Over 1 Hr Average EDT (%) Over 1 Hr Azimuth Error (deg)
1 σ Std. Dev.
Azimuth Error (deg)
1 σ Std. Dev.
  Land Profile Land Profile with DMI Land Profile Land Profile with DMI
Entry Level - S1 0.28% 0.15% 1.76 1.59
Mid-Range - S2 0.10% 0.05% 0.18 0.17
High Performance - S3 0.08% 0.05% 0.12 0.10

The below image depicts the error over distance traveled over 1 hour of complete GNSS outage. 

land profile and dmi comparison


Error over distance traveled varies with test-route trajectory and dynamics. See the following paper for more details: "NovAtel's SPAN Land Vehicle Performance Analysis - May 2017"

Supporting Products

Other product categories which are required with this product to create a complete system.

SPAN® on OEM7® Receivers

Multi-frequency GNSS receivers that use a 555 channel architecture and is capable of tracking all current and upcoming GNSS constellations. Multiple form factor, configuration and firmware options available


IMUs from leading manufacturers. Range of performance levels available