SPAN® Land Vehicle
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.
Features
- 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".