TERRAIN PREDICTION METHOD AND DEVICE OF ROTARY MICROWAVE RADAR, AND SYSTEM AND UNMANNED AERIAL VEHICLE

摘要

A terrain prediction method and device of a rotary microwave radar, and a system and an unmanned aerial vehicle. The method comprises: acquiring first position information of N target points and a radar scanning angle that are measured by the rotary microwave radar in a rotation process, wherein a rotation axis of the rotary microwave radar is provided perpendicular to a course axis of the unmanned aerial vehicle; converting the first position information of the N target points to second position information; and according to the second position information of the N target points and the radar scanning angle, determining a terrain parameter of a ground, such as a slope gradient, and an altitude of the unmanned aerial vehicle from the ground. The rotation axis of the rotary microwave radar is provided perpendicular to the course axis of the unmanned aerial vehicle, so that a scanning range of the rotary microwave radar on a horizontal plane can be enlarged, and then the accurate and comprehensive measurement of the ground can be implemented, thereby improving the accuracy of the ground measurement.