Recent content by JerryG

  1. J

    IMU Calibration while Sailing

    Ref compass calibration - I BELIEVE (but by all means shoot me down) that it's still a good thing to do if you've significantly changed your location ... such as after a long-haul flight to another continent (which a yachtie may well have done).
  2. J

    IMU Calibration while Sailing

    Well done "Meta4". I meant to mention that point and then forgot to! Several navies have lost quite expensive drones by forgetting the issue that "HOME" is no longer where you are, it's way back down the track.
  3. J

    IMU Calibration while Sailing

    Surely it’s to do with the fact that your takeoff point is moving? When the IMU tries to calibrate it will be assuming that your takeoff point is static, but it finds that it’s moving at 6 knots and concludes “I’ve got a problem”. (I THINK you should be able to fly despite that warning) Also...
  4. J

    Edit Orthophotos (GEO-tif) and 3D:s

    I use Pix4D for post processing. One of the options, in addition to creating the usual orthomosaic, is to create a .kmz. The orthomosaic can then be opened as a layer in Google Earth, which of course allows you to use all the standard GE functions, including those you've described. I think you...