摘要
利用IMU/DGPS组合导航技术,可以在航空摄影的同时直接获取像片的外方位元素。试验表明,只要对IMU/DGPS与航摄仪的集成系统误差和漂移误差进行检校和改正,直接获取的像片外方位元素可以用于正射影像的制作和中小比例尺测图。本文首先讨论了IMU/DGPS组合导航技术和IMU/DGPS辅助航空摄影系统的工作原理;然后,结合甘肃酒泉试验数据,重点分析讨论了IMU/DGPS和航摄仪集成系统的误差及其检校问题。
The direct measurement of exterior orientations using the integrated IMU/DGPS system proves to be an effective means. Experiments show that the accurate performance of direct forming orthophotos and small or medium scale maps. Aimed at solving the orientation measurement is sufficient for problems existent in the IMU/DGPS orientation module, this paper deals with the integrated IMU/DGPS system and the elements of IMU/DGPS - based photogrammetry and, on such a basis, emphatically analyzes the overall system calibration.
出处
《国土资源遥感》
CSCD
2006年第1期51-55,74,共6页
Remote Sensing for Land & Resources
