METHOD FOR DETERMINING THE COORDINATES OF A SHORT-LIVED UNMANNED AERIAL VEHICLE Russian patent published in 2021 - IPC G01S19/07 

FIELD: navigation satellite systems.

SUBSTANCE: invention relates to methods for differential correction of navigation satellite systems. The method for determining the coordinates of a short-lived UAV using global navigation satellite systems is characterized by the fact that after receiving increments of differential corrections to pseudo-ranges using known differential correction methods, they are filtered by averaging using the iteration method, after which the variance of differential corrections to pseudo-ranges is scaled to an integer obtaining the dispersion coefficient of differential corrections to pseudo-ranges for each navigation satellite. Then these dispersion coefficients are transmitted from the base control and correction station to the short-lived UAV before it starts to move. The obtained dispersion coefficients are used as weight coefficients in determining the Kalman filter gains, where the covariance matrix of the measurement vector in a part of the pseudo-ranges is represented as a diagonal matrix, on the main diagonal of which such coefficients are located.

EFFECT: technical result consists in increasing the accuracy of determining the true coordinates of a short-lived UAV using global navigation satellite systems.

1 cl