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"Not defending them (for fear of getting caught in a crossfire), but it looks like they do include GPS in their size calc. And they have all the stuff on board (IMU stuff and pressure) as well. Don't know how "big" (length, area, volume?) your next…"
"Good stuff Ryan...even with magnetometers, wind estimation is important for better path following and auto landings.
Since you have all this information however, is the EKF possibly a little overkill? Since most GPS give you NED velocity (Ublox…"
Since you have all this information however, is the EKF possibly a little overkill? Since most GPS give you NED velocity (Ublox…"
"Hi Jason,
Not sure, but they probably are just giving you the arctan of their velocity vectors, since that it needed for the calc anyway. Take a stream of data and compare the two (atan2 of velocity and their reported heading) in a walking test down…"
Not sure, but they probably are just giving you the arctan of their velocity vectors, since that it needed for the calc anyway. Take a stream of data and compare the two (atan2 of velocity and their reported heading) in a walking test down…"
"I'm pretty sure I get the site concept, and how Dean designed his board is indeed relevant and instructive to a group trying to make their own autopilots. But that isn't why he sells his product. That is why it falls into the reverse engineering…"
"I wouldn't apologize if I were you Dean. Remember, the DIY guys are biased...they have their own "baby" that they are promoting. A product review looks at product features and compares marketing claims to real performance. If you do 50Hz updates and…"
"Not sure what "inverse yaw" is. The mode that HugePanic is seeing is dutch roll:
http://en.wikipedia.org/wiki/Dutch_roll"
http://en.wikipedia.org/wiki/Dutch_roll"
"The NASA example you provide is interesting, but I suspect that it is only one example and may be taken out of context. For example, if I possess classified information that a foreign government shouldn't have, but I want to give it to them, I don't…"
"I haven't looked at the code, but check that you don't divide by zero or your ATAN function doesn't blow up when your current lat/long = home lat/long (or very close to it)."
"If it was that simple...I don't think they would have mandated this secrecy thing. Keep good notes...sounds like you could have a nice tell all book or 60 minutes whistleblower episode..."
"Not to put you on the spot, but if no laws exist and you didn't sign anything and its supposed to be public...what is holding you back from blowing the whistle on what is happening behind closed doors? What is the worst that can happen...they don't…"
"Why all the partial secrecy? Why ANY secrecy? It's not military work, its civilian regulation development. Even your local school board has open meeting laws to guard against abuse of the system. It is always easy for the big money groups to hide…"
"That is my understanding as well Patrick. And you are right, that was my real point about autonomy. If it isn't a complete soup to nuts operation, it just seems like R/C with bells and whistles.
Just need to get the price well below $30k.
I'm glad…"
Just need to get the price well below $30k.
I'm glad…"
It's hard to understand who here has experience or sklls to do what you all seem to want to do. There is a lot of talk about stuff that might lead to it. But it is unclear if anyone is flying or close to flying real autopilots, or if they are just…
