About

Gender

Male


Location

Minnesota


Please tell us a bit about your UAV interest

baron.flightgear.org/~curt


Hometown:

Yarina Cocha


Activity Feed

Curt Olson commented on Matthew Silic's blog post Sensors for Attitude Estimation
"Matthew, if this is at all interesting to you I would offer to run one of your flight data sets through my hud rendering system to see what happens.  Essentially what I do is mount an action cam somewhere on the airplane with as much of a clear view…"
Mar 24, 2019
Curt Olson commented on Matthew Silic's blog post Sensors for Attitude Estimation
"The UMN 15-state EKF requires changes in velocity (from the perspective of the gps) in order to for the heading to converge without mags.  It really works well for fixed wing flight (higher dynamic motion.)  For quads that spend much of their time…"
Mar 23, 2019
Curt Olson commented on Matthew Silic's blog post Sensors for Attitude Estimation
"Hi Matthew,
Nice explanation of the important issues with our UAV sensors.
I work for Prof. Gebre (listed in your references) at the U of MN UAV lab.  For attitude determination we primarily fly a 15-state ekf he published a few years back.  This…"
Mar 23, 2019
Curt Olson commented on Mauricio's blog post WATERPROOF DRONES SOLVES MAPPING & INSPECTION ON MARINE AREAS
"Impressive work.  Making something like this entirely water proof is very challenging!"
Mar 15, 2019
Curt Olson commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"Assuming apm/px4 is running their ekf with a 10hz gps, those systems only have to coast on IMU for about 1/10 of a second between corrections.  I know vibration can cause weird things to happen, but outside of that, the big driver of attitude error…"
Feb 16, 2019
Curt Olson commented on Mauricio's blog post Pioneering steps into fixed wing - water landing drones in marine ecology
"We had a similar experience with the pitot tube as well.  A bit surprising maybe, but the water has trouble forcing it's way very far in.  Our experience with flipping upside down was in about 25kt winds and fairly heavy swells was our flying wing…"
Feb 16, 2019
Curt Olson commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"I remember a georgia tech paper from years before the DIY drone movement started where someone built an autonomous self navigating aircraft around a 1hz gps.  It doesn't take much to get an airplane self navigating around the sky.  So yes, accuracy,…"
Feb 13, 2019
Curt Olson commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"Haha, that's awesome!  It turns out you don't need much to get an drone around the sky, but I don't think most people realize how inaccurate their hobby grade systems can be."
Feb 8, 2019
Curt Olson commented on Mauricio's blog post Pioneering steps into fixed wing - water landing drones in marine ecology
"Cool, yes, you really need to be able to submerge the plane because it will get splashed by big waves, flipped upside down by the wind, will get run over by your boat, and every other possible thing you could imagine will happen.  Our plane had a…"
Feb 8, 2019
Curt Olson commented on Mauricio's blog post Pioneering steps into fixed wing - water landing drones in marine ecology
"In a past life I helped with a marine uav project.  I'm curious if you have any observations on how well the waterproofing works on this aircraft?  Can it carry and protect a larger camera (like a digital mirrorless type?)  How many dunks in…"
Feb 8, 2019
Curt Olson commented on Tiziano Fiorenzani's blog post Precision Landing in 7 Steps and Coding Challenge...
"Hi Tiziano, thanks for the kind words.  Just to clarify: this video was created after the flight completed.  I combine raw action cam footage with a HUD overlay.  The HUD is generated directly from the flight data log.  I have a collection of…"
Nov 9, 2018
Curt Olson commented on Tiziano Fiorenzani's blog post Precision Landing in 7 Steps and Coding Challenge...
"Hi Tiziano, thanks for making your videos!  Aruco markers are amazingly cool!  Here's one of my best precision landings flown with an x-uav talon): https://www.youtube.com/watch?v=Su3sL4JhcQc
Sorry, I didn't use aruco markers for any of this ... but…"
Oct 20, 2018
Curt Olson commented on hiroshi takey's blog post [COMMUNITY] - Today, Ardupilot banned to me from and my related Ardupilot project.
"If a community explains their expectations and purpose of their forum, but someone continues to defy those expectations and requests over the course of months, then it really does put the community in a tough spot.  It's not about democracy or…"
Mar 24, 2018
Curt Olson commented on Patrick Poirier's blog post PocketPilot , a new Linux FC based on the 25$ PocketBeagle®
"Hi Patrick,
Hopefully you don't mind me asking a pocketbeagle question?  Are you using /dev/ttyS2 in your system?  I have ttyS4 working great on my pocketbeagle, but I've been trying all day to get ttyS2 to talk with zero luck.  The device driver is…"
Feb 10, 2018
Curt Olson commented on Patrick Poirier's blog post PocketPilot , a new Linux FC based on the 25$ PocketBeagle®
"Hi Patrick, ok I do have a couple questions.  Sorry if any of this is stated obviously and I missed it.  How many PWM outputs can the pocketpilot support?  I see 4 obviously for quad copter use, but can you do more than that?  What are you using for…"
Jan 31, 2018
Curt Olson commented on Patrick Poirier's blog post PocketPilot , a new Linux FC based on the 25$ PocketBeagle®
"Yup.  I *really* like the concept of the PRU's, but have chosen an easier path to follow by adding my own easy-to-program external processor.  I use the teensy to handle all the interrupts and hard real time chores.  This simplifies the higher level…"
Jan 27, 2018
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