Nice to see you are building your own mapping drone and share your experience. I have been flying the X8 for mapping since 2012 and must say it is an excellent plane for stable and long flights. Some tips which might help you:
* Best to…"
Hi Guys,I am strungling with my X8 frame (3DR X8+ with ArduCopter V3.2.1 and pre-installed param). It was fine flying in Belgium, but after transportation to Peru I observe some issues during navigation (auto/RTL). I have redone the compass…
"oh yes ..one other question. Can you also share the output of the irradiance sensor? Or do you need PIX4D software to open it? One small advice on that sensor: try to put it as high as possible on your drone. You don't want to have any shade coming…"
"Thanks for this review! I really want to get my hands on one of these sensors to try them out! I have been looking at the images you provided and seems that the images of the individual bands are clear shots without too much blur which is a good…"
"X8+ is really great value/money! Here you see an example of last August where I integrated a thermal camera to map diseases in oil palm trees. Will these product be discontinued soon? And more important, will 3DR offer a similar octocopter in the…"
"Great discussion! The article I was referring to indeed is aimed to calibrate expensive airborne and satellite imagery but general idea (measurement of the reflected light normalized for changing illumination and viewing conditions) also applies to…"
"Yes .. I agree. I also would at least take 5-6 pixels on your target as margin. Some nice literature on this type of vicarious airborne image calibration: http://www.mdpi.com/2072-4292/7/5/6196
I guess this one would be large enough for any job ;)…"
"Ned, Great write-up on difficult theme. I have some additional points on calibration:
John Sulik, you mention a few lines back “Teflon works well up to 1000nm if it is elevated far enough above ground to allow light underneath it to diffuse. I just…"
"Wauw.. A radius of 250km.. That's almost 200000 km2 which is the size of a small country. We do around 2-4 km2 per flight with our fixed wings. Even if you can increase to lets say 20km2 if allowed to fly above 500m, just do the math you'll see uav…"