3 ms·
You're right. So how else could this problem be solved given the power constraints? (P.S. I do have to mention - It's very likely that my critique is completel
by alphakappa 13y ago
You're right. So how else could this problem be solved given the power constraints?
(P.S. I do have to mention - It's very likely that my critique is completely invalid because they may have performed measurements of these birds in flight Vs. these birds on ground, and the accel data may show completely different characteristics for both. It's also likely that they may have chosen the sampling rate and data duration based on these experiments, but since this is HN, it's fun to speculate on how this experiment could be improved.)
- fhars 13y agoSomebody else posted a link to this graph from the publications that shows results for different movement patterns actually observed while the birds were in the summer colony: http://www.nature.com/ncomms/2013/131008/ncomms3554/carousel/ncomms3554-f6.jpg http://www.nature.com/ncomms/2013/131008/ncomms3554/carousel...
- sliverstorm 13y agohow else could this problem be solved given the power constraints? I wonder if gravity changes enough at a typical flight ceiling to be detectable by a very accurate accelerometer?
- rtkwe 13y agoAt 5km up the difference is miniscule, back of the napkin says the difference is ~-0.01 m/s^2. Which is pretty small to use as a classification filter. All the way up to 40km it's still only ~1.2% weaker.
- micro_cam 13y agoWith fish they have tags that record light intensity, pressure and temperature which is enough to give a low res position estimate [1]. Not sure how well this would transfer to this problem but it is cool tech. [1]: http://www.gtopppublications.org/repository/254_07-11-11_Blocketal98_MTS.pdf http://www.gtopppublications.org/repository/254_07-11-11_Blo...