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.
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".