CORS基站在低空无人机PPK技术处理中的应用研究  

CORS station application research in low-altitude UAV PPK technology processing

作　　者：周烽松 楚彬 曾翔强 ZHOU Fengsong;CHU Bin;ZENG Xiangqiang(Hunan Institute of Geomatics Sciences and Technology,Changsha 410007,China)

机构地区：[1]湖南省测绘科技研究所,长沙410007

出　　处：《全球定位系统》2022年第1期93-97,共5页Gnss World of China

基　　金：湖南省科技创新平台与人才计划(2018TP2040);湖南省自然资源科技计划项目(2020-01,2020-02);湖南省国土测绘项目(HNGTCH-2021-08);长沙市自然科学基金资助项目(kq2014161)。

摘　　要：传统无人机应用动态后处理(PPK)技术时需要临时架设地面基站,增加外业工作负担.以大疆精灵4实时动态定位(RTK)无人机为研究对象,利用不同距离连续运行参考站(CORS)基站、地面基站的数据参与无人机PPK技术,并与无人机RTK处理成果进行对比分析.结果表明:CORS基站相关成果受距离影响明显,离实验区域近时,其精度略低于实验区架设基站和无人机RTK模式获取的成果,可以满足1∶1000比例尺测图要求.该成果对降低外业工作强度和减少外业工作流程有着一定的意义.The application of postprocessed kinematic(PPK)technology in traditional unmanned aerial vehicle(UAV)requires temporary erection of ground base stations,which increases the workload of the field.The DJI Phantom 4 real time kinematic(RTK)UAV is used as the research object,the data of continuously operating reference stations(CORS)and ground base stations at different distances are used to participate in UAV PPK technology,and the processing results will be compared with UAV RTK.The results show that the relative results of CORS station are significantly affected by distance.When close to the experimental area,the accuracy of CORS base station is slightly lower than the results of base station and RTK erection in the experimental area,and can meet the requirements of 1∶1000 scale mapping.This result is of certain significance to reduce the field work intensity and the field work flow.

关 键 词：无人机 动态后处理(PPK) 连续运行参考站(CORS) 实时动态定位(RTK) 

分 类 号：P228.4[天文地球—大地测量学与测量工程]