An autonomous tracking method for solving target track crossing in passive warning screen

Abstract

The invention discloses an autonomous tracking method for solving the intersection of target tracks in passive warning pictures, which mainly includes the steps of wideband spectrum background normalization, extreme value extraction, feature association, tracking update and the like. The invention combines the wide-narrowband spectral characteristics, designs a complete set of complete and orderly processing flow, can effectively utilize the characteristic spectral information of the target, and realizes the current peak search for suspected target features and historical track targets through the processing form of dimensionality reduction and clustering. The association between features and the classification of categories can easily achieve real-time feature spectrum label classification and stable continuous tracking. For the case of target track intersection, continuous track of target classification can be achieved.

Description

technical field [0001] The invention relates to the field of passive sonar target detection and tracking processing technology, in particular to an autonomous tracking method for solving the intersection of target tracks in passive warning pictures. Background technique [0002] Passive sonar target detection mainly obtains the azimuth information of the target. However, there are often several targets at different distances in the same azimuth in the environment. On the passive broadband warning display and control screen, the phenomenon of crossing the tracks of different targets is often encountered, resulting in unstable stability. Reliable and continuous tracking of the same target in turn affects the single-beam processing guided by the tracking-association bearing information and the passive target recognition performance at the back end. At present, the common methods to solve the situation of passive target track intersection include the method based on the track si...

AI Technical Summary

Problems solved by technology

[0002] Passive sonar target detection mainly obtains the azimuth information of the target. However, there are often several targets at different distances in the same azimuth in the environment. On the passive broadband warning display and control screen, the track intersection of different targets is often encountered, resulting in instability. Reliable and persistent tracking of the same target, which in turn impacts single beam processing guided by track-associated bearing information and passive target recognition performance in the backend

At present, the common methods to solve the situation of passive target track intersection are based on the track situation characteristics and the method based on Kalman filter. However, such methods need to establish an accurate and reliable target motion model, and at the same time require that the track characteristics of the target are continuous and different. greater resistance, otherwise the performance will drop sharply or even fail

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