Group target tracking method based on image morphological processing

Abstract

The invention discloses a group target tracking method based on image morphology processing, which comprises the following steps of: processing echo signals received by a radar receiver in a samplingperiod, performing coordinate conversion calculation, establishing an initial image matrix, calculating a binary image matrix, sequentially performing image morphology processing and marking processing on the binary image matrix, calculating an equivalent center vector of a group target in the sampling period, calculating a track set of the group target by adopting a logic method, calculating an initial state of the center of the group target, calculating an association matrix, adjusting a filtering tracking track according to the association matrix, and taking a current filtering tracking track state as a filtering state for predicting the center position of the group target in the next sampling period, and finally obtaining a group target tracking result. According to the method, the group target tracking based on image morphology processing is used in the technical field of radar tracking, not only is the calculation precision of the group target center guaranteed, but also the group target is well tracked under the condition that the group target is partially missing, and the method has valuable practicability.

Description

Technical field [0001] The invention belongs to the technical field of radar target tracking, and particularly relates to a group target tracking method based on image morphology processing. Background technique [0002] In modern warfare, the use of UAV technology for reconnaissance and strike has become an important means of military confrontation. UAV group operations composed of UAVs pose a huge threat to the defense system. The group target 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 time. Therefore, the center of the group target is tracked to maintain the overall tracking of the group target, regardless of each target in the group, by tracking the center of the group target, the position of each group in each frame is obtained; the group target tracking is in the air target monitoring, UAV multi-target formation movement tracking field has important application value. Beca...

AI Technical Summary

Problems solved by technology

The reason for partial resolution is that the distance and angle between the targets in the same group exceed the radar resolution capability, and often two targets are recognized as one target, so the observation information of all individual targets in the group cannot be obtained

This increases the position error between the center of the group target and the real center, which may lead to losing the group target in severe cases

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