GNSS resilience for drones

Drones lean on GNSS for position, height hold and return-to-home. We help operators and makers find out what happens when it fails, and fix it before it matters.

WHO
Operators and makers
TYPICAL WORK
Audits, fusion, testing
START WITH
A resilience audit
Talk about your dronesDownload a sample report
Top view of a quadcopter with callouts for the forward camera, dual IMU on dampers, barometer, optical flow, lidar rangefinder and a raised GNSS and compass mast, with motor magnetic disturbance shown around each rotor.

WHERE GNSS BITES

Common problems in drones

JAMMING

Losing GNSS mid-flight

Interference near sites, events or borders can drop position in seconds, often with little warning on the ground station.

HEADING

Compass trouble

Steel structures, power lines and motors upset magnetometers, so heading goes wrong just when GNSS is weakest.

MULTIPATH

Flying close to structures

Inspection work near buildings and bridges brings reflected signals that pull the position off by metres.

HOW WE HELP

What a project with us covers

  • A failure-mode review of your flight controller’s navigation and failsafes
  • Sensor fusion tuning for IMU, magnetometer, barometer and vision
  • Simulated jamming and spoofing tests on the bench, never in the air
  • Evidence for the navigation parts of your risk assessments and safety cases
  • Clear advice on what to change first
Diagram of a distant satellite, a nearby in-car jammer and a receiver, next to a power scale showing the jammer far above the noise floor and the satellite signal below it.
FIG. — How a jammer drowns out the much weaker satellite signals. Illustrative.

SAMPLE REPORT

See exactly what you’ll receive

A sample report for each service, written for a fictional system: structure, findings format and recommendations. Illustrative data.

Download sample PDF

FAQ

Common questions

Can you help with our operational authorisation?

We don’t write applications, but our audits and test reports can support the navigation and failsafe parts of your safety case.

SERVICES

Where to start

01

GNSS resilience audit

Find out what breaks when GPS is jammed, spoofed or simply missing, and what to do about it.

From £{x} · about 2 weeks

02

Sensor fusion & filter design

Kalman and particle filters, IMU calibration and multi-sensor integration for drones, robots and vehicles.

From £{x} · scoped per project

Working on drones?

Send a few lines about your aircraft and where it flies. You’ll get a reply within two working days.

dan@bearingandfix.co.uk