METHOD FOR ESTIMATING PARAMETERS OF OBJECT'S TRAJECTORY Russian patent published in 2017 - IPC G01S7/41 G01S13/66 

FIELD: radar ranging.

SUBSTANCE: invention relates to location equipment and is intended for use in systems for tracking mobile objects and missile guidance systems. Said result is achieved due to the following: method for estimating the parameters of an object’s trajectory is based on locating the coordinates of the object, converting those into the rectangular coordinates and using the Kalman filter to estimate the parameters of the object’s trajectory, wherein the controlled parameter of the Kalman filter is set, as well as its threshold value, within the current time of estimation the correlation matrix of extrapolation error of the Kalman filter is multiplied by the weight coefficient with the initial value equal to one, value of the controlled parameter is accumulated, then the accumulated value of the controlled parameter is compared to the threshold value and if it exceeds the threshold value, the "Maneuver" feature is formed, than the accumulated value of the controlled parameter is reduced to zero, and the weight coefficient value is discretely increased and followed by the accumulation of the controlled parameter and formation of estimates of trajectory parameters, wherein, if the "Maneuver" feature is present, the accumulated value of the controlled parameter becomes smaller than the threshold value, and the "Maneuver" feature is removed, than the accumulated value of the controlled parameter is reduced to zero, and the weight coefficient value is discretely increased and followed by the accumulation of the controlled parameter and formation of estimates of trajectory parameters.

EFFECT: technical result is increased accuracy of estimating the parameters of the trajectory of the tracked object in the conditions of uncertain dynamics of its motion.

4 cl, 1 dwg