Data interconnection method capable of resisting intelligent pull-off interference

Abstract

The invention discloses a data interconnection method for resisting intelligent pull-off interference, and the method comprises the steps: obtaining candidate echoes under a probability data interconnection-Kalman filtering system, considering the distribution characteristics of the intelligent pull-off interference, and building an angle confidence interval in a prediction gate; secondly, the candidate echoes are subjected to x2 test, and the joint probability of each event under the interference-free condition and the pull-off interference condition is calculated; and finally, through total probability weighting, calculating and correcting a joint probability, and updating and iterating a state and a covariance function of subsequent Kalman filtering. According to the method, the influence of the pull-off interference in the data interconnection process is considered, through feature distribution of the pull-off interference, a traditional probability data interconnection algorithm is improved, the influence of the pull-off interference is effectively suppressed, a good interference suppression effect is achieved, the influence of the intelligent pull-off interference on target tracking is suppressed, the track offset is reduced, and the tracking accuracy is improved. The method is superior to a traditional probability data interconnection algorithm in tracking root-mean-square error and pull-off success rate.

Description

technical field [0001] The invention belongs to the technical field of electronic countermeasures, and in particular relates to a data interconnection method for resisting intelligent drag interference. Background technique [0002] With the continuous development of jamming technology, the demand of radar anti-towing jamming technology in modern electromagnetic countermeasures is increasing. The intelligent towing interference with strong correlation of multiple frames seriously affects the data interconnection process between the point track and the track, which makes the radar form a false track during the tracking process, and forces the radar to switch from the tracking mode to the search mode when the interference disappears. Affects tracking performance. Therefore, it is very important to study a data interconnection method that resists the interference of intelligent dragging, and has gradually become a research hotspot of scholars and institutions at home and abroa...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the data interconnection method in the radar tracking process, research and design a data interconnection method against intelligent towing interference, solve the existing method without considering the influence of towing interference, and rationally allocate each Correlation gate measures the probability of belonging to the real target, and adopts the method of weighted fusion to suppress the influence of intelligent towing interference on radar tracking

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