Blog
Notes on GPS-denied navigation and drone autonomy
Technical articles on navigating without satellites: sensor fusion, SLAM, visual odometry and GNSS interference.
What is SLAM? Mapping and localization for drones
SLAM lets a drone map its surroundings while estimating its own position in that map. How it works, which sensors it uses and its challenges on drones.
Read the article →Visual odometry (VO) vs VIO: what's the difference?
Visual odometry (VO) estimates motion from camera images alone; VIO adds IMU data. How the two methods work and where each is strong or weak.
Read the article →What is GPS spoofing and how do drones detect it?
GPS spoofing feeds a receiver fake satellite signals so it computes the wrong position. How it differs from jamming and how drone software can detect it.
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