Synthesis and Research of Filter with a Variation of Coefficients for Tracking a Maneuvering Aerodynamic Target

Abstract

Processing radar information about aerodynamic targets coordinate information remains an urgent problem It is assumed that the target moves in a straight line and evenly most of the time and less of the time it makes various maneuvers Target tracking is carried out at a rate equal to the survey time in the presence of coordinates measurements Currently there are number of filters for smoothing the target coordinate parameters At the same time the existing filters are characterized by a large error of smoothing in sections without a maneuver and small in sections with a maneuver or vice versa - by a small error in sections without a maneuver and a large error in sections with a maneuver Moreover many filters work effectively only in some specified ranges of input parameters The new filter should provide a minimum smoothing error in areas without maneuver It should ensure the minimum possible errors and emissions of smoothing error during the maneuver and operate efficiently over the widest range of input parameters To achieve this goal a two-fold correction variation of the smoothing coefficients was used in accordance with the deviation of the coordinate of the newly measured position of the target mark from the extrapolated position The variation is performed in accordance with the selected function while the smoothing step acquires a certain conditional value