title: A Novel System for Correction of Relative Angular Displacement between Airborne Platform and UAV in Target Localization.
abstract: This paper provides a system and method for correction of relative angular displacements between an Unmanned Aerial Vehicle (UAV) and its onboard strap-down photoelectric platform to improve localization accuracy. Because the angular displacements have an influence on the final accuracy, by attaching a measuring system to the platform, the texture image of platform base bulkhead can be collected in a real-time manner. Through the image registration, the displacement vector of the platform relative to its bulkhead can be calculated to further determine angular displacements. After being decomposed and superposed on the three attitude angles of the UAV, the angular displacements can reduce the coordinate transformation errors and thus improve the localization accuracy. Even a simple kind of method can improve the localization accuracy by 14.3%.
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. liuchenglong14@mails.ucas.ac.cn.|University of Chinese Academy of Sciences, Beijing 100049, China. liuchenglong14@mails.ucas.ac.cn.
authors.forename: Chenglong
authors.initials: C
authors.lastname: Liu
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. liujinghong@ciomp.ac.cn.
authors.forename: Jinghong
authors.initials: J
authors.lastname: Liu
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. songyueming@ciomp.ac.cn.
authors.forename: Yueming
authors.initials: Y
authors.lastname: Song
authors.affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. lianghuaidan14@mails.ucas.ac.cn.|University of Chinese Academy of Sciences, Beijing 100049, China. lianghuaidan14@mails.ucas.ac.cn.
authors.forename: Huaidan
authors.initials: H
authors.lastname: Liang
keywords: UAV; angular displacement; coordinate transformation; image registration; shock absorber; target localization