Radar double-gate two-step branch prediction flight path tracking method

Abstract

The invention belongs to contents in the field of radar data processing, and particularly relates to a radar double-gate two-step branch prediction flight path tracking method. According to the method, two gates, i.e., a normal gate and a maneuvering gate, are adopted, namely a double-gate method is used for tracking a target; and meanwhile, two-step branch prediction is also adopted to correctly determine the correct route of the flight path. According to the method, on one hand, the problem that tracking error is likely to occur in data processing when a detected target temporarily disappears in a complex background is solved, the accuracy for target tracking in a complex electromagnetic environment can be improved, the probability of target tracking error is reduced, and continuous tracking of the target in the complex background is guaranteed; and on the other hand, the problem that continuous tracking is difficult in the data processing when the detected target maneuvers is solved, the continuous tracking performance of the maneuvering target by the data processing can be improved, and the workload of manual intervention of a radar operator is reduced.

Description

technical field [0001] The invention belongs to the field of radar data processing, in particular to a radar double-wave gate two-step branch prediction track tracking method. Background technique [0002] The radar data processing system generally uses the Kalman filter method to process the track. First, the most relevant point trace is selected in the wave gate, and then filtering and extrapolation are performed according to the relevant point trace, and information such as the position and velocity of the target is calculated accordingly. Commonly used Kalman filter gates include "normal gate" and "motorized gate". At present, only one of the gates is usually selected for trace correlation in radar design, that is, the single gate design method is adopted. [0003] Compared with the single-wave gate design method of "maneuvering wave gate", simple Kalman filtering often leads to mistracking of the flight path in complex electromagnetic and meteorological environments. B...

AI Technical Summary

Problems solved by technology

On the one hand, the present invention solves the problem that tracking deviation is prone to occur in data processing when the detected target is temporarily lost in a complex background, can improve the accuracy of target tracking in a complex electromagnetic environment, reduce the probability of target wrong tracking, and ensure complex Continuous tracking of targets in the background; on the other hand, it solves the problem that data processing is not easy to track continuously when the detected target is maneuvering, which can improve the continuous tracking performance of data processing for maneuvering targets and reduce the manual intervention of radar operators. workload

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