北京航空航天大学学报2026，Vol.52Issue(9)：3039-3051,13.DOI:10.13700/j.bh.1001-5965.2025.0267
导航辅助雷达量测增强的扩展型低空飞行器跟踪
Extended low-altitude aircraft tracking via navigation-assisted radar measurement augmentations
摘要
Abstract
In the flight test of cooperative aircraft floating at low altitudes,a single-station high-resolution radar can get sparse(even missing)and spatially incomplete measurements,while the radar observes a partial surface of the aircraft.This will lead to poor tracking accuracy for the tested aircraft.To solve this problem,this paper proposes a tracking method using augmented radar measurements by fusing aircraft navigation information.First,a symmetric positive definite random matrix is used to approximate the aircraft's three-dimensional extension shape,which is roughly ellipsoidal,based on the structurally extended characteristic of the aircraft identified by the high-resolution radar.Subsequently,the partially observed aircraft model and the radar measurement model are both established.Further,multiple strategies are designed to augment sparse radar measurements using assisted aircraft navigation information,such that the radar measurement data is improved in both amount and spatial completeness.Finally,an implementation of aircraft state estimation under partial observation is given within the Bayesian filtering framework.The outcomes of the simulation experiment show that the proposed method improves the tested aircraft's tracking accuracy and,consequently,awareness accuracy for its flight condition.Moreover,the proposed method has the advantages of high fusion usage of multi-source measurement information and a low computational cost.关键词
低空飞行器/扩展目标跟踪/随机矩阵/部分观测/稀疏量测/数据增强Key words
low-altitude aircraft/extended target tracking/random matrix/partial observation/sparse measurements/data augmentation分类
航空航天引用本文复制引用
李坤坤,黎克波,曹锐,刘远贺,胡爽..导航辅助雷达量测增强的扩展型低空飞行器跟踪[J].北京航空航天大学学报,2026,52(9):3039-3051,13.基金项目
国家自然科学基金面上项目(12472359) The General Program of National Natural Science Foundation of China(12472359) （12472359）
