Multi-cluster-target tracking method with shape information

A shape information, group target technology, applied in the direction of radio wave reflection/re-radiation, using re-radiation, measuring devices, etc., can solve the problem that multiple group targets cannot be tracked, and achieve the effect of saving radar tracking resources

Inactive Publication Date: 2018-12-18
中国人民解放军海军航空大学青岛校区
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  • Abstract
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Problems solved by technology

[0004] In order to solve the technical problem that multiple group targets cannot be tracked in the existing algorithm, the

Method used

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  • Multi-cluster-target tracking method with shape information
  • Multi-cluster-target tracking method with shape information
  • Multi-cluster-target tracking method with shape information

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Embodiment 1

[0051] Embodiment 1, this embodiment proposes a multiple group target tracking method with shape information, including the following steps:

[0052] The step of establishing a model is to establish a motion model and a measurement model of the radar for the group target;

[0053] The grouping processing step divides the measurement obtained at the initial moment of the radar into different group targets and determines the initial track for each group target;

[0054] The group track association step is to associate each measurement at the current moment with the group target track at the previous moment;

[0055] A filtering and tracking step is performed on each group of targets, and the movement state information and shape of each group of targets are predicted and updated.

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Abstract

The invention discloses a multi-cluster-target tracking method with shape information. The method comprises the following steps of establishing a model, and establishing a motion model and a radar measurement model for the cluster targets; performing clustering processing, wherein the measurement results obtained by the initial moment of the radar are divided into different cluster targets, and aninitial flight path is determined for each cluster target; performing track associating, wherein each measurement value of the current moment is associated with a cluster target track at the previousmoment separately; and performing filtering and tracking on the cluster targets separately, and carrying out prediction and updating on the motion state information and the shape of each cluster target. According to the multi-cluster-object tracking method with shape information, a random matrix for describing the cluster target shape is added in the cluster state, so that the radar tracking resources are saved, more reference information is provided for a driver by estimating the cluster shape in real time, and a higher practical application value is achieved.

Description

technical field [0001] The invention relates to the technical field of phased array radar systems, in particular to the technical field of radar target tracking. Background technique [0002] Group targets can be regarded as a group of targets that are very close to each other and have basically the same speed and direction of movement in a short period of time. Group target tracking has important application value in the fields of ground or sea target monitoring, multi-target formation movement, crowd or herd tracking, etc. Group target tracking can solve the difficult problem of dense target tracking. In most cases, group targets not only have similar motion characteristics, but also are close to each other for a long time because the individual targets in the group are relatively dense. At the same time, due to the limitation of radar resolution, the accuracy of tracking each target in the group one by one is very low. At this time, the group as a whole can be tracked. ...

Claims

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Application Information

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IPC IPC(8): G01S13/66
CPCG01S13/66
Inventor 戚甫峰王婷婷夏栋郭维波李大龙彭志刚杨玲芳
Owner 中国人民解放军海军航空大学青岛校区
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