Typical mobile formation target tracing modeling method

Abstract

Provided is a typical mobile formation target tracing modeling method. Based on the measurement characteristic in mobile formation, four typical mobile formation target tracing models of overall mobile action, splitting, merging and dispersion are established. In the flight path maintaining state, formation targets will have various mobile actions, at the moment, affine transformation such as scaling, shearing and rotation happens to the relative position structure of target echoes in formation, and an ideal tracking effect can not be obtained easily with a traditional mobile target tracking algorithm because the complexity of the mobile formation target echoes is not taken into full consideration; according to an existing mobile formation target tracing algorithm, only simple research based on the overall formation is performed, the state of all the targets in the mobile formation can not be accurately updated in real time, and the defects are overcome with the method.

Description

technical field [0001] The invention belongs to the technical field of radar information fusion and provides several typical mobile formation target tracking modeling methods. Background technique [0002] In recent years, with the improvement of sensor performance, especially the resolution, more and more scholars have begun to pay attention to how to use the comprehensive information obtained by multiple sensors to improve the tracking performance of formation targets, which makes many key problems to be solved in the field of formation target tracking. question. 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 structure of targets in the formation will change, which will lead to more complex resolution of individual targets in the fo...

AI Technical Summary

Problems solved by technology

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 algorithms are based on the research on splitting and merging of the formation as a whole. There is no literature report on the track update of the target in the formation when maneuvering occurs under multi-sensor detection, and it can no longer meet the actual engineering needs in the field of target tracking.

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