Autonomous Vehicles

If you’re responsible for developing autonomous vehicle technology, you need a reference system to validate driving performance. That’s especially tough when you consider that autonomous vehicles must be able to drive in a variety of environments on the open-road.

Relying solely on GNSS as a reference produces incomplete data sets. GNSS-only systems do not perform well on the open-road. Satellite signals are reflected from buildings or blocked by bridges and tunnels; this causes big jumps in position estimations. Our inertial navigation systems process up to 250 Hz of data from our inertial sensors, tightly-coupled with GNSS updates to provide a robust ground truth reference in difficult open-road conditions.

Experts in autonomous vehicles since 2005

Our experience in this sector leads back to our involvement in the 2005 DARPA Challenge. Our RT3000 navigation system helped two teams complete the course unaided. We’ve improved our positioning performance since then for towns and cities through our gx/ix™ single satellite aiding technology. Our own Application Engineers now support customers in pursuit of improved autonomous vehicle performance with integration work and bespoke development projects.

More than just positioning

An inertial navigation system is an essential localisation sensor in any unmanned vehicle development kit. Our popular RT products are used by autonomous development teams around the world as an accurate reference (or ground truth) for other sensors. Our systems are also used to provide accurate survey georeference data for laser scanners capturing 3D point-cloud map data.

As well as outputting accurate positioning data, our systems capture heading (<0.1°), pitch and roll (<0.03°) measurements with reference to the vehicle frame. During long periods of unmanned vehicle data collection, our systems can log data at up to 250 Hz in real-time. Data can be post-processed later to further improve accuracies.

Choosing the right system for your project

We manufacture a range of inertial navigation systems. They differ in their performance, size, and price. The RT3000 is popular with autonomous vehicle engineers. It is a robust and flexible system with a CAN interface, capable of 1 cm position (RTK), and can be easily integrated with our ADAS validation tool, RT-Range S.

If you are starting a new project in this sector, our experienced Application Engineers can provide the resource and experience that could help.

Why choose oxts

  • Minimise drift in urban environments with single-satellite aiding
  • Heading 0.1°
  • Pitch and roll 0.03°
  • 1 cm position accuracy (RTK)
  • Free comprehensive software suite
  • Batch processing of multiple RD files to save time in post-processing
  • Application engineer resource available to accelerate your development work
  • Once installed, no need for repeat configuration or maintenance