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3.2 IMU Calibration
IMU calibration is a prerequisite for LiDAR accuracy. It is a key factor that impacts the final point
cloud accuracy. For the L1, please note that IMU calibration is required before, during (every 100s of
the flight mission), and after data collection to ensure the inertial navigation system accuracy.
Figure: IMU calibration is needed before, during, and after the flight
Below are two ways of IMU calibrations that can be used during manual/mission (flight route) flight.
3.2.1 Calibration Flight Button in Manual Flight
Fly the drone to a proper altitude, switch to the camera screen, and click on the "Calibration Flight"
button. M300 RTK will automatically fly forward and backward 3 times to calibrate the IMU system at
current altitude. Make sure there are no obstacles in the 30m range ahead of the drone.
