UCAV地形空间环境感知中位置细胞构建方法  

A Method of Constructing Place Cells in UCAV Terrain Space Environment Perception

作　　者：周阳[1] 吴德伟[1] 邰能建[1] 杜佳[1] 

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077

出　　处：《空军工程大学学报（自然科学版）》2014年第1期62-66,共5页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61273048)

摘　　要：为实现UCAV认知导航对地形空间环境感知信息的表征,提出了一种基于IHDR树的位置细胞构建方法。利用SURF算法提取环境中高鲁棒性的特征点,以特征点描述矢量及其在地理空间中的位置组合为路标信息,生成训练样本,以IHDR建树原则对路标信息双重聚类,然后将聚类后的叶子节点作为表征对应地形空间环境的位置细胞,完成位置细胞的构建。仿真结果表明,该方法构建的位置细胞能有效表征地形空间环境,对一定噪声干扰下的地形空间环境也具有识别能力。In order to realize the representation of perceptual information of terrain space environment for UCAV cognitive navigation,a method is proposed to construct place cells based on IHDR tree.SURF al-gorithm is used to extract high robustness feature points in environment,the landmarks＇information are combined by the description vector of feature point and its position in geographic space,so the training samples are obtained,and the double clustering of landmarks＇information is achieved according to the IHDR algorithm,and the leaf nodes of clustering are regarded as place cells to represent the terrain space environment.Finally,the place cells are constructed .The simulation results show that the place cells con-structed by this method can represent the terrain space environment effectively,and have the ability of rec-ognizing terrain space environment under condition of certain noise interference.

关 键 词：环境感知 位置细胞 IHDR树 环境表征 

分 类 号：V279[航空宇航科学与技术—飞行器设计]