Absolute position
Every map fix cancels the accumulated drift. Inertial covers the short term; the map, the long term.
NOMADNAVIGATION SYSTEMS
Resilient navigation · Defence · Dual use
Absolute visual navigation for drones: the camera matches the terrain against a map carried on board and delivers a drift-free position even when GNSS is jammed or spoofed. Passive, emission-free and PX4-compatible.
Satellite jamming and spoofing are now the normal condition of contested airspace, and they already affect civil aviation daily over the Baltic, the Eastern Mediterranean and the Black Sea. A drone that depends on GPS goes blind exactly when it matters most.
The system only looks. There is no signal to detect, triangulate or trace back to the aircraft.
It relies on no external signal. A jammer has nothing to block.
Terrain cannot be faked. Position comes from what the camera sees, checked against the map.
Terrain-Relative Navigation (TRN): a nadir camera extracts ground features and matches them against an onboard orthophoto and elevation model. The result is an absolute position, free of the drift that visual odometry and inertial navigation accumulate.
Every map fix cancels the accumulated drift. Inertial covers the short term; the map, the long term.
The position reaches the autopilot as just another GNSS receiver. PX4 fuses it with no firmware changes.
Orthophoto and digital terrain model from European public sources, loaded on board before flight.
Field tablet to load the mission before launch. From then on the aircraft flies by itself and returns home.
Fixed-wing, quadcopter and hexacopter share the same avionics: a ROS 2 computer commanding a PX4 flight controller. What works on one works on all three.
Range and endurance. With a Pitot tube the autopilot estimates wind and greatly extends dead reckoning between fixes.
Light and quick to deploy. The test bed of the system.
More payload and motor redundancy for heavier sensors.
› The navigation module is open and modular: it also integrates into third-party aircraft flying PX4.
Observation missions that stay on track even when GNSS is jammed or spoofed.
→Surveillance of perimeters and critical sites, often in areas under deliberate interference.
→Reliable autonomous flight in valleys, canyons or under interference, where GNSS degrades.
→A resilient navigation module to add to your PX4 aircraft without redesigning it.
→We are not after the most capable drone, but the one Europe can produce: the best replicable performance at low cost, close to its users and improving in weeks, not years.
Airframes and mounts cut and machined on our own CNC, plasma and laser machines.
European onboard computer, open-source PX4 and ROS 2, and European public geodata.
Modular architecture on open standards, ready to integrate into third-party platforms.
We come from the workshop. We have spent years designing and building CNC machinery, and that manufacturing capability is what we now bring to autonomous navigation.
CNC machinery manufacturer in Valladolid, Spain: milling, plasma and laser cutting for education, technology centres and industry.
A new business line, within the Zarigüeya Labs initiative, dedicated to resilient navigation for dual-use drones.
Three in-house platforms flying on a common avionics core, with every flight logged.
We build the drones
and the machines that build them
Flight demonstrations, integration into your platform or innovation programmes: if navigating without GNSS is a problem for you, we want to hear about it.