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Dec 25, 2007, 06:51 AM
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There is a dynamic model setting in the uBlox.


* 1 Stationary
* 2 Pedestrian
* 3 Automotive
* 4 Sea
* 5 Airborne with <1g Acceleration
* 6 Airborne with <2g Acceleration
* 7 Airborne with <4g Acceleration

It defaulted to "Automotive", so now we put it on "Airborne with <2g Acceleration". The logic seems to be more lowpass filtering the higher U go. Suspect the most sensitive model is "stationary" and the least sensitive model is "Airborne with <4g Acceleration".

Either way, high wind & rain will keep away meaningful tests for the rest of the year.

Got some good news. The bogus climb rates from the uBlox were actually a bug in the simulator. It was reading heading as climb rate, hence the range of -3.14 - 3.14. Also, the uBlox is randomly ignoring configuration lines, so it often generates garbage NMEA sentences. Climb rate is now in the meaningful range, if not actually useful.

XBee is paying off in this wind. Had 1 save which wouldn't have been possible on 72Mhz.

Well, got our first autonomous video from the Aiptek. Besides tons of manual altitude nudges, it actually maintained horizontal control in 5mph wind. The uBlox definitely has less delay.

Got 100 lousy seconds of video. Only hand stabilized 35 seconds for the viewers at home. The rolling shutter was in attendance.

Aiptek video in auto hover (0 min 36 sec)


Need a tiny camera with a real fast, manual shutter speed + full frame shutter. Next year's cameras R going to be 20% more expensive than last year's.
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