单线阵相机获取立体影像的效能分析  

Analysis of the Efficiency of Single Line Array Camera in Obtaining Stereoscopic Images

作　　者：王建荣[1,2] 曹彬才 魏永强 刘状 WANG Jianrong;CAO Bincai;WEI Yongqiang;LIU Zhuang(Xi’an Institute of Surveying and Mapping,Xi’an 710054,China;State Key Laboratory of Spatial Datum,Xi’an 710054,China)

机构地区：[1]西安测绘研究所,西安710054 [2]空间基准全国重点实验室,西安710054

出　　处：《航天技术与工程学报》2025年第1期11-15,共5页

摘　　要：卫星搭载单线阵相机通过整星侧摆方式获取立体影像,具备实现立体测绘能力。本文基于同轨立体影像获取模式,简要分析了在俯仰方向侧摆时对影像分辨率影响,建立了立体影像长度与侧摆角、机动能力间的数学模型,并进行了仿真试验分析。在相机镜头畸变、卫星机动能力以及姿态测量精度达到一定要求时,以单线阵相机为主要载荷的卫星可以实现小区域的立体测绘任务。当前,可以将以单线阵相机和立体相机为载荷的两类卫星统筹使用,共同完成高精度、高时效性地理信息数据的获取。长远发展来看,在基于全球高精度基准影像底座基础上,小卫星组网的智能星座测绘将成为重要的发展方向。The satellite is equipped with a single line array camera to obtain stereo images through the satellite’s sideways maneuver,which is used to achieve stereo mapping capability.In the paper,based on the same orbit stereo image acquisition mode,the impact of pitch maneuvers on image resolution was analyzed,and a mathematical model relating stereo image length,pitch angle,and maneuverability is established,and simulation experiments are conducted.When the camera lens distortion,satellite maneuverability,and attitude measurement accuracy can meet certain requirements,the satellite with single line array camera can achieve stereo mapping in small areas.Currently,the two types of satellites equipped with single line array cameras and stereo cameras can be used in combination to jointly obtain high-precision and high-timeliness geographic information data.From the perspective of long-term development,based on the global high-precision reference image,the intelligent constellation mapping of small satellites networking will become an important development direction.

关 键 词：摄影测量卫星 全球连续覆盖 局部区域覆盖 立体影像 定位精度 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]