Dear Heinrich, Some filters in paparazzi can compensate for this but the DCM filter does not. For the bungee launch the problem is not the GPS delay but the total lack of forward acceleration compens
I have tried launching a 5 Kg plane with Bungee and the new 1.8.2 arduimu code. Pitch can change up to 15 degrees during normal take off so i had to disable the elevator until the plane was free. The
Hi, i think one of the problem is the fact that in the cross product of a=W x V (rates cross speed over ground) only the yaw rates are taken into account to correct the gravitation vector to
The attached plot shows the effect of an heuristic on the norm of acceleration ( the blue plot has it, the green one does not) for a complementary filter AHRS. This simulation is done on a "bungee li
Well i have tried Bungee launching a heavy airplane many times and all i can say is that if there is a weak point in the construction of the electronics, wiring etc it will manifest it self pretty qu
All, We added a new navigation routine which enables an aircraft to survey the area of any convex polygon. Some additional features of this navigation routine are.. Variable sweep width Can have any
Congratulations.. Kadir 2014-05-06 8:26 GMT+03:00 Loic Drumettaz <address@hidden>: Thanks for the feedback, congratulations for the third place! Loic Le 5 mai 2014 19:17, "paparazzi_guy" <address@hid
Thanks for the feedback, congratulations for the third place! Loic Le 5 mai 2014 19:17, "paparazzi_guy" <address@hidden> a écrit : Hello everybody, We are on our way back from the Unmanned Systems
Hello everybody, We are on our way back from the Unmanned Systems Canada UAS competition, which was open to various Universities in Canada. We are both exhausted and relieved to be done. For the comp
http://www.engr.usu.edu/wiki/index.php/OSAM This is their bungee launch stuff http://paparazzi.enac.fr/wiki/Advanced_Navigation_Routines#Bungee_Takeoff Chris Gough ________________________________
http://www.engr.usu.edu/wiki/index.php/OSAM This is their bungee launch stuff http://paparazzi.enac.fr/wiki/Advanced_Navigation_Routines#Bungee_Takeoff Chris Gough
Hi Iman I recommend traditional bungee launch. This works just fine both for small and large planes, is robust, cheap and maintenance-free. This simple solution lets you focus on more critical par
Hi, as the warning should tell you it is probably not a good idea to use both AHRS_USE_GPS_HEADING and USE_MAGNETOMETER=1. There is estimation of mag offset wrt. gps course. So either use gps cours
Felix and anyone else who might know, i have one last question... What ahrs subsystem is better for a fixed wing with bungee take off? I used the float_dcm with 5g take off acceleration and it worked
Hi all, Took my stuff out for another day at the testing site after fixing some mostly structural issues (thrust angle, torn off elevator, etc). In my tests I'm still testing out regular flight chara
Hi, The fix is really simple, just rotate the measurements to body frame. Fixed for nav_catapult and energy_control in master: https://github.com/paparazzi/paparazzi/commit/22989e61dde68d437ddc598e55
IMU accelerometers are not converted too Body by default, only AHRS is. This probably needs extra code. Maybe the state interface will help here. And here is how we always have our IMU x pointing for
Dear all, I probably found a bug in sw/airborne/modules/nav/nav_catapult.c What happened is that motor was not starting automatically on a catapult launch. I checked the code and found that we are us