Marine target association system and method based on high-low orbit optical satellite observation

Abstract

The invention relates to a marine target association system and method based on high-low orbit optical satellite observation. The marine target association system comprises 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 detecting and tracking module is used for detecting and tracking a marine target by utilizing the high-orbit optical satellite image sequence to obtain motion trail information of the marine target. The target detection and motion feature extraction module is used for performing marine target detection and motion feature extraction by utilizing the low-orbit image to obtain the position and heading information of the target. The target multi-level and multi-feature association module is used for carrying out marine target multi-level and multi-feature association based on the motion trail information obtained by the target detection and tracking moduleand the position and heading information obtained by the target detection and motion feature extraction module. According to the method, the monitoring capability of the marine target can be remarkably improved, and meanwhile, the method has very high target association accuracy under a complex observation background 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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