Target extraction method based on all-solid-state vts radar

Abstract

The invention discloses a target extraction method based on an all-solid-state VTS radar. The double threshold judgment is performed on video data information; The video data information of the targetis blurred after the double threshold judgment, and a two-dimensional image is formed according to the video data information of the target after the blurring; object edge extraction is performed onthe two-dimensional image to obtain video data information belonging to the same object; Minimum envelope processing is performed on video data belonging to the same object to obtain a minimum coverage envelope belonging to the same object. The video data information in the minimum coverage envelope belonging to the same object is smoothed to obtain the video data information belonging to the sameobject after smoothing. The invention improves the extraction precision of the target, improves the integrity of the target extraction, reduces the risk of splitting the same target into a pluralityof targets when the target is extracted, and provides a reliable basis for subsequent track processing.

Description

technical field [0001] The invention relates to the technical field of radar target extraction, in particular to a target extraction method based on an all-solid-state VTS radar. Background technique [0002] VTS radar is an information perception device for vessel traffic management services. The basic tasks of VTS radar include: 1. Perceive the position and movement data of ship targets; 2. Perceive the position data of buoys, lighthouses or other fixed targets; 3. Perceive pre-ship SART Signal. [0003] The target extraction method is to extract the information belonging to the same target contour and contour, and estimate the target parameters according to this information, so as to achieve the purpose of improving the accuracy of point track aggregation and improving the quality of track tracking. Therefore, choosing the optimal target extraction method is crucial to accurately estimating the target parameters. [0004] The traditional target extraction method using g...

AI Technical Summary

Problems solved by technology

[0004] The traditional target extraction method using graphics directly extracts the edge of the image without filtering the background clutter, which reduces the accuracy of target extraction; the traditional target extraction method using graphics does not consider the discontinuity of the radar detection target characteristics, which reduces the integrity of target extraction, causing the same target to be split into multiple targets during target extraction; the traditional target extraction method using graphics has not considered the video data information belonging to the same target contour and within the contour. Perform smoothing process, resulting in estimated deviation of the target parameters of the follow-up stippling process

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