Gender
Male
About
Location
Sterling, VA
About Me:
Aerospace Engineer with Ph.D. in control theory. I design autopilots for UUVs in my day job. Building an RV-12 in my spare time.
Please tell us a bit about your UAV interest
I'm interested in autopilots, control theory, and aircraft of all kinds.
Activity Feed
"Thanks again, looking forward to the SITL webinar"
"I think you meant 30 years"
"So what they're trying to do is basically this:
http://ausi.org/research/sauv/"
http://ausi.org/research/sauv/"
"Yes the absence of RF communications and navigation makes things more difficult under the water. This vehicle appears to have at least two acoustic transducers on the top. One is likely an acoustic communications modem, the other may be for an…"
"It would be helpful to have an editable version of the diagram maintained in the online documentation or included in the repository."
"@JoeRe: interleaving, the CH-47 has interleaved rotors, so it's at least feasible. Perhaps the turbulence and vibration would make it an undesireable solution. I'll admit I haven't done my homework on that concept.wikipedia CH-47Re: rotor tilt, Ok…"
"I'm very interested to see this fly! I've thought of building a variable pitch quad as a means to improving the actuation bandwidth of the rotor thrust, as you mentioned. I had assumed I'd drive the props via driveshafts from a motor or motors in…"
"This is great! Yes please do post source and schematics."
"Excellent work! Do you intend to release plans, kits, or hardware?"
"I'm glad to hear about the ability to include GPS data in the DCM calculation, but I hadn't seen any reference to that capability in the posted documentation. That makes me wonder what other undocumented features the chip has.
Is there more…"
Is there more…"
"@John @Chris : Ok good to hear the code will support both methods out of the box. One concern with the MPU-6000 calculated attitude is that since it doesn't have access to a velocity measurement it would not be possible to correct for…"
"If the MPU-6000 is doing a black-box DCM calculation internally, then my level of interest in this board goes from 100% to 5%. Will the board support running the DCM calculation on the Atmega?"
"Sounds good. I have some ideas for SITL-specific logging that I may try once I get the sim up and running. I'm interested in the Wiki how-to you mentioned, because I still seem to have some dependencies to track down. FWIW I'm building on OS X…"
"Having a SITL sim is huge. Is there a way, or are you planning a capability, to add logging of arbitrary internal variables when running in SITL mode? It's usually much easier to debug dynamic phenomena by plotting time histories than to look at…"
I've looked through the code and, unless I've missed it, there is no integral term in the calculation of nav_bearing. Specifically, in navigation.pde: static void update_crosstrack(void){ // Crosstrack Error // ---------------- if…
"I couldn't tell from the posted information whether the V3 board is using the internal attitude estimation of the MPU6000 or is reading the raw output and doing the attitude estimation on the Atmega328p. Can you clarify? Thanks"
