Method of determining the coordinates of a ground object from an unmanned aerial vehicle

A new method for the automatic determination of ground object coordinates from an unmanned aerial vehicle without reference to the underlying surface image is considered. The method is intended for use in cases where obtaining navigation information via onboard receivers of global navigation satellite system signals becomes impossible due to the absence or unstable reception of satellite navigation signals. The proposed method is based on finding the intersection points of circles formed by the rotation of vectors, whose magnitudes are determined through spatial measurements of distances and angles between the unmanned aerial vehicle and ground reference objects using onboard technical means. The results of applying the developed mathematical models and software for determining the coordinates of a reference land plot and estimating the errors of the obtained results are presented.