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Oct 03, 2013, 01:24 AM
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PX4flow navigation 2

Px4flow waypoint navigation 2 (3 min 53 sec)

All fully autonomous flights with just the px4flow, sonar, & barometer determining position. That's probably the most aggressively something has ever flown itself using optical flow. Optical flow has previously just been used for aiding a human pilot in a hover.

With the maximum velocity limited to 0.3m/s, the horizontal navigation starts to scream. 0.25m/s is probably the upper limit for consistent navigation. 0.6 to 1.0m seems to be the useful altitude range.

There was an attempt to use just the gyro for heading. It was slightly better, but still not as consistent as a mast.
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