Expanded generalized S-dimensional assignment and formation target maneuvering mode judgment method

Abstract

In view of the fact that a traditional multi-sensor maneuvering target tracking method and an existing maneuvering formation target tracking method cannot track targets in a maneuvering formation accurately and easily, the invention provides an expanded generalized S-dimensional assignment and formation target maneuvering mode judgment method based on formation target tracking models under four typical maneuvering modes of integral, split, merged and scattered maneuvering. The method includes: firstly, structuring multiple feasibility partitions based on formation tracks and formation measurement, then structuring an S-dimensional assignment problem based on a cost function of each feasible partition, and finally judging a maneuvering mode of each formation target based on the optimum feasibility partition so as to complete status updating of each track in the formation by utilizing the formation target tracking model under the corresponding maneuvering mode. The problem about accurate tracking of the targets in the maneuvering formation under the condition of multi-sensor detection is well solved.

Description

technical field [0001] The invention belongs to the technical field of multi-sensor and multi-target information fusion, and provides a method for judging maneuver modes of extended generalized S-dimensional allocation formation targets. Background technique [0002] In the track maintenance stage, the formation targets will undergo various maneuvers. At this time, the relative position structure of the target echo in the formation undergoes affine transformations such as scaling, shearing, and rotation. The non-maneuvering formation target tracking method is no longer applicable. The traditional maneuvering target tracking method is difficult to achieve the ideal tracking effect due to insufficient consideration of the complexity of the maneuvering formation target echo, and the existing maneuvering formation target tracking method is only simply studied based on the formation as a whole, and cannot complete the maneuver accurately and in real time. Status updates for each ...

AI Technical Summary

Problems solved by technology

The traditional maneuvering target tracking method is difficult to achieve the ideal tracking effect due to insufficient consideration of the complexity of the maneuvering formation target echo, and the existing maneuvering formation target tracking method is only simply studied based on the formation as a whole, and cannot complete the maneuver accurately and in real time. Status updates for each target in the formation

[0003] During the movement of the formation target, based on specific tactics or purposes, the formation target will turn, climb, dive and other overall maneuvers at any time, and there will also be formation-specific maneuvering modes such as splitting, merging, and dispersion. In this case, The target structure in the formation will change, which will lead to more complex resolution of individual targets in the formation by multiple sensors, and the precise tracking of targets in the maneuvering formation with multiple sensors in the clutter environment will become very difficult

The traditional multi-sensor maneuvering target tracking technology is difficult to track maneuvering formation targets, the main reasons are: (1) when the formation targets split, merge or disperse, the traditional maneuvering target tracking model no longer matches; (2) the targets in the formation are generally far apart It is relatively close, so the influence of echo crossing is serious, coupled with the influence of clutter, when the formation maneuvers, it is easy to lose track, follow wrong, etc. The angles of the internal targets are different, and the detection status of the same mobile formation target by each sensor may be inconsistent, and it is more difficult to realize the complementarity and elimination of multi-sensor information

Most of the existing maneuvering formation target tracking methods are based on the research on splitting and merging of the formation as a whole, which cannot solve the problem of track update of targets in the formation when maneuvering occurs under multi-sensor detection, and can no longer meet the actual engineering needs in the field of target tracking.

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