Industry-leading positioning accuracy to support and scale autonomy
Our ground truth system packages bring tailored performance and flexible configurations to your autonomy goals. Whether used for real-time positioning to your autonomy stack, as a reference for verification and validation, or to collect geo-referenced data, you can trust our packages to deliver reliability across all conditions.
Contact us
Autonomous mobility
Provide accurate and real-time position, velocity, and attitude data to your autonomy stack for cars, trucks, and robots.
Verification and validation
Compare your developed position and trajectory with ground truth data across your verification and validation fleets.
Data collection and mapping
Collect high-accuracy georeferenced data to enable automated labelling in both real-time and post-mission applications.
Key benefits of ground truth systems
Unmatched accuracy
Combine GNSS, inertial, and additional vehicle inputs to deliver enhanced reliability with precise 3D position, velocity, and attitude in real-time across environments.
Seamless integration
Streamline integration of absolute positioning ground truth reference technology into your existing platform with easy data access across your entire fleet.
Scalable and flexible
Packages and add-ons that match your project's changing needs, including RF interference resiliency, post-processing enhancement, and GNSS correction services.
One-stop shop with flexible packaging
Hexagon is the only provider offering comprehensive, all-in-one solutions, conveniently bundled into simple and customisable packages. Developed for efficient and rapid integration, our ground truth system packages provide the performance and support to match your application needs and budget.
| Core | Plus | Ultimate | ||
|---|---|---|---|---|
| Best suited for | Open-sky | Sub-urban/urban | Urban canyons | |
| Real-time | ||||
| Dual antenna | Multi-frequency with L-Band corrections and multipath rejection |  |
|
|
| Superior tracking performance and multipath rejection |  |
|
|
|
| Enclosure | Robust, high-precision receiver | |
|
|
| GNSS+INS positioning | |
|
|
|
| Interference identification and resiliency | |
|
|
|
| IMU | Integrated within the enclosure | |
|
|
| Improved for vibration and attitude | |
|
|
|
| Fibre optic, tactical grade | |
|
|
|
| Correction service | Network RTK in a region of choice | |
|
|
| Maintain accuracy during delivery outages | 20 minutes | Unlimited | Unlimited | |
| Post-mission | ||||
| Post-processing | Maximise precision post-mission | |
|
|
| Upgrades: CLI or SDK | On request | |||
| Correction service | Near-real-time (NRT) corrections and 100 Receiver Independent Exchange (RINEX) hours | |
|
|
| Upgrades: 500 or 5000 RINEX hours | On request | |||
| Support | ||||
| Quick response | Optimised handling of issues | |
|
|
| Education package | Documentation and configuration tailored to your use case | |
|
|
| Further packages | Upgrades: integration support, technical training, priority case management | On request | ||
What's included
Hardware
PwrPak7D high-precision, dual-antenna GNSS receiver enclosures, high-performance GNSS antennas, and tactical to navigation performance inertial measurement units (IMUs).
Correction services
Hexagon SmartNet network RTK with cellular outage protection, powered by TerraStar precise point positioning (PPP) correction services.
Post-processing software
Waypoint Inertial Explorer delivers unmatched positioning accuracy using TerraStar NRT corrections. 100 RINEX hours are included; more available on request.
GNSS+INS positioning
SPAN technology provides industry-leading, advanced sensor fusion to combine GNSS and inertial for continuous 3D position, velocity, and attitude.
GNSS interference resilience
Interference toolkit (ITK) firmware monitors GNSS signals for interference, jamming, and spoofing, so you can take corrective actions to mitigate.
Support
A three-hour setup support session is included; add on-site integration support, technical training, or 24/7 priority case management to any package.
Ground truth systems FAQ
“Ground truth” data are measurements known to be real or true through empirical evidence. Ground truth systems provide highly accurate positioning, serving as the benchmark for evaluation performance.
When developing your solution, a ground truth system is used to verify the accuracy and reliability of your positioning system. While your autonomous solution operates and outputs where it thinks it is located and oriented, the ground truth system can tell you if that location and orientation are true.
Satellite positioning alone offers metre-level accuracy, which may not be precise enough for advanced automotive applications. Correction services elevate the positioning accuracy to the centimetre-level in real-time. We have different offerings depending on whether you operate in areas without cell or internet access. If you're not sure whether you need Network RTK, precise point positioning (PPP correction services), or another combination, we suggest reaching out to our experts.
GNSS outages from tunnels or dense urban environments can compromise your data accuracy when gathering data in real-time. By post-processing your data, you can clean up inaccuracies – including those caused by inertial positioning drift and signal interruptions. Hexagon's Waypoint Inertial Explorer post processes your data both forward and backward in time, then combines the results for optimal accuracy. It provides access to stored corrections from the TerraStar and SmartNet networks, and offers intuitive, customisable workflows that adapt to your technical and business needs.
RINEX hours refer to Receiver Independent Exchange hours, which provide incredibly accurate and standardised positioning data from the SmartNet network within a single country or continent. It provides raw GNSS data like atmospheric observations, ephemeris, satellite errors, and more, helping fill in data gaps between signal disruptions. The more hours you have, the more data you have access to that help supplement your overall positioning accuracy.
Our three packages are designed to be flexible to accommodate customers across their autonomy journey. Our Core package is our best scaling option and focuses on real-time positioning. The Plus package provides improved GNSS+INS positioning, and is our best seller because of its flexibility across more complex operating and driving environments. Our Ultimate package provides the most robust, resilient, and reliable ground truth solution for the most challenging environments.
If these options don't meet your needs, however, we encourage you to reach out to our experts. Together, we'll come up with a customised package that best fits your unique application.