基于小型无人机的近岸海域成果定位精度探讨

Discussion of the Positioning Accuracy of Coastal Sea Area Results Based on Small UAVs

在无人机的空间分辨率达到0.05 m的情况下,它的定位精度就成了一个关键的因子,直接影响了成果的应用。而定位精度的高低直接与姿态航向测量系统、定位系统、控制点数量、分布有直接关系。目前,海南省海域管理无人机为小型无人机,其姿态航向测量系统仅由多个传感器组成。考虑到海南省近岸海域的特点,重点探讨了控制点的控制范围与定位误差的关系,无控制点情况下的定位精度分析,同时分析了各情况下误差特点,从而达到指导以后无人机作业,提高成果定位精度的目的。

With UAV spatial resolution reaching 0.05 meters,its positioning accuracy has become a key factor and directly affects the application of the results.The positioning accuracy is related to the attitude and heading measurement system, positioning system,the number and the distribution of control points.Currently,the attitude and heading measurement system of Hainan sea area management UAVs was only made up of multiple sensors.Considering the characteristics of coastal sea area of Hainan Province,it focuses on the relationship between controlling area and positioning error of the control point,the analysis of the positioning accuracy without control point and error characteristics for each case,in order to provide guidance to the future UAV operations and improvements of the positioning accuracy of the results.