Distance estimation from ground for small VTOL UAV landing

소형 VTOL UAV 이착륙을 위한 지면과의 거리 추정

For automatic landing of small VTOL UAV, it is necessary to calculate the distance from the UAV and the ground. The distance can be generally measured by a ultra-sonic sensor, but the ultra-sonic sensor has errors according to velocity of a sensor board. To compensate these errors, we proposed a sensor fusion method using a Kalman filter.