Context and Issue
Today, outdoor positioning solutions are mainly based on GNSS services, which provide absolute positioning.
In some specific environments (urban or mountainous canyons, areas with dense vegetation, electromagnetically disturbed areas, etc.), the GNSS signal can be heavily disturbed and lead to location errors.
As part of a research project on this subject, we are looking for technical solutions that would allow an outdoor mobile object to evaluate and transmit its position relative to a reference point (another mobile object, for example), as well as its orientation (direction of travel, visual orientation).
Expected characteristics of the solution:
- Solution that does not rely on a GNSS signal
- Solution exclusively based on an inertial navigation system (INS) are not accepted
- It must not require any material preparation prior to the operation of the system
- Accuracy of the location / distance from the reference point within 0.5m (horizontally and vertically)
- Orientation accuracy of 1°
- Functions regardless of weather conditions and lighting (day/night)
- The transmission of the position can be done by radio communication (option 1: the reference point knows the position of the mobile object and retransmits it / Option 2: the mobile object is able to recalculate its own position and sends it back to the reference point / Option 3: mixed / Option 4: other).