Precision single-point positioning method for UAV aerial survey based on dynamic GPS

The conventional UAV aerial survey precision point positioning method mainly focuses on sensor node positioning, which has the problem of positioning error due to the influence of surface characteristics. Therefore, a precise point positioning method for UAV aerial survey based on dynamic GPS is designed. Registration of UAV aerial survey single point vision positioning remote sensing image, through geometric correction, image enhancement and other methods, highlights the image characteristics of UAV aerial survey single point, and avoids the problem of positioning error. The precise single point positioning model of UAV aerial survey is built based on dynamic GPS, and the single point position equation of UAV aerial survey is built by using inertial navigation parameter error equation and acceleration error equation to ensure the accuracy of single point positioning. Correct the single point positioning error of UAV aerial survey accuracy, take signal attenuation, polarization change, propagation delay and other issues into consideration, correct the single point positioning error of UAV aerial survey accuracy, and achieve the precise positioning of UAV single point. Through comparative experiments, it is verified that the positioning accuracy of this method is higher and can be applied to real life.