A maritime target association system and method based on high and low orbit optical satellite observations

Abstract

The invention relates to a maritime target association system and method based on high and low orbit optical satellite observation, including: a target detection and tracking module, a target detection and motion feature extraction module, and a target multi-level multi-feature association module; the target detection and tracking module uses The high-orbit optical satellite image sequence detects and tracks maritime targets, and obtains the trajectory information of maritime targets; the target detection and motion feature extraction module uses low-orbit images for detection and motion feature extraction of maritime targets, and obtains the position and heading of the target information; the target multi-level multi-feature association module, based on the target detection and tracking module to obtain the motion trajectory information and the target detection and motion feature extraction module to obtain the position and heading information, to perform multi-level multi-feature association of maritime targets. The invention can remarkably improve the monitoring capability of sea targets, has a high accuracy rate of target association under complex observation backgrounds, and is easy to implement.

Description

technical field [0001] The invention relates to a maritime target correlation system and method based on high and low orbit optical satellite observation, and belongs to the technical field of maritime target information fusion in space-based ocean surveillance. Background technique [0002] With the continuous increase of the types and quantities of satellites, the application form of marine surveillance becomes more complex. The information obtained by a single satellite or a single type of satellite is single, and it is difficult to complete effective observation of maritime targets. Multiple satellites of multiple types or even different orbits are required to cooperate with each other to jointly complete the continuous monitoring of maritime targets. [0003] High-orbit optical satellites can carry out large-scale, long-term, and continuous tracking of maritime targets. However, high-orbit optical satellites are limited by orbital heights, and the resolution of satellit...

AI Technical Summary

Problems solved by technology

However, at present, domestic and foreign researches mainly focus on the mission planning of high and low orbit satellites, and there is no public information on the correlation of maritime targets under the joint surveillance of high and low orbit satellites. Therefore, an effective and feasible point-track correlation method is urgently needed

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