3 ms·
How do they know where it really is? There's no GPS on Mars. Couldn't winds have blown it off course each time they flew it?
by secondcoming 3y ago
How do they know where it really is? There's no GPS on Mars. Couldn't winds have blown it off course each time they flew it?
- dotnet00 3y agoIt has cameras, they'd be able to compare terrain features against photos from Perseverance and flyovers by MRO.
- dredmorbius 3y agoInteresting question. Principally image-based location tracking, though also with an inertial measurement unit (IMU) and laser rangefinder, all off-the-shelf components. See: "How Ingenuity Knows Where It Is And Where It's Going" <https://picknik.ai/slam/localization/state%20estimation/mars%20helicopter/2021/05/10/Ingenuity.html https://picknik.ai/slam/localization/state%20estimation/mars...>