A Trajectory Association Method for Non-Uniform Coverage Detection in Large-Scale Constellations

Based on the requirements for efficient detection and tracking of dense moving maritime targets using large-scale constellations, we innovatively design a trajectory association method for non-uniform coverage detection in large-scale constellations. Leveraging the configuration and non-uniform coverage characteristics of large-scale constellations, an integrated space-ground constellation networking transmission architecture is constructed to achieve rapid satellite data downlink and efficient target association. We propose an adaptive association threshold and a multi-level vessel association strategy, enabling rapid screening and accurate association of targets in complex operational scenarios while reducing time complexity and space complexity in data fusion processing. This approach fulfills the real-time performance and accuracy requirements for engineering applications.