摘要
为验证构架航线对低空无人机影像定位精度的影响,以标准化和高精度大型室外无人机检校场为实验环境,设计8种不同方案对自主研制的固定翼无人机获取的213张影像进行定位精度验证评估。研究结果表明:1)对于条带状测区,构架航线摄站坐标具有充当地面控制点的作用。当测区内无4角控制点时,仅在测区中间布设控制点,构架航线能够显著提高影像定位结果的精度。2)结合差分POS数据分析,构架航线对于提高平面和高程方向的精度作用不明显,但会提高区域网模型之间的连续性,增强定位结果的可靠性。3)测区两端的构架航线与4角控制点相结合,对定位精度的提高没有明显的影响。
In order to verify the positioning accuracy of low-altitude UAV image,the standardized and high-precision large-scale outdoor UAV calibration field is used as the experimental environment.Eight different plans are designed to evaluate the positioning accuracy based on 213 images acquired by the independent development fixed wing UAV in research.The results show that the photography coordinates of control strip can act as ground control points and it also can significantly improve the accuracy of positioning results of images when there are only control points in the middle of strip shape survey area.The control strip has no obvious effect on improving the accuracy of the plane and elevation directions,but it will improve the continuity of regional network models and enhance the reliability of positioning results when it combines with differential POS data.The combination of control strip and four corners control points has no apparent influence of positioning accuracy.
作者
张永显
蓝朝桢
张楠
梁静
訾栓紧
ZHANG Yongxian;LAN Chaozhen;ZHANG Nan;LIANG Jing;ZI Shuanjin(Information Engineering University,Zhengzhou 450001,China;61206 Troops,Beijing 100042,China;Henan College of Surveying and Mapping,Zhengzhou 450052,China)
出处
《测绘科学技术学报》
北大核心
2019年第1期69-73,共5页
Journal of Geomatics Science and Technology
基金
国防科工项目(2102050203)
