GPS World, June 2017

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ZigBee radio frequency identification Wi Fi and imagebased systems ACKNOWLEDGMENTS The work reported in this article was supported the National Key Technologies R D Program and the National Natural Science Foundation of China Thanks to NovAtel for providing the latest test version of its post processing software for the purposes of this experiment Special thanks also to students from the Navigation Group of the Institute of Space Science and Technology at Nanchang University and to Yuhao Wang for his support of drone surveying 64 GPS WORLD WWW GPSWORLD COM JUNE 2017 MANUFACTURERS The high rate IMU used in our work was an Xsense www xsens com MTi miniature MEMS based Attitude Heading Reference System We also used NovAtels novatel com Waypoint GrafNav v 860 post processing software and a DJI dji com Phantom 3 drone MARCIN URADZIŃSKI received his Ph D from the Faculty of Geodesy Geospatial and Civil Engineering of the University of Warmia and Mazury UWM Olsztyn Poland with emphasis on satellite positioning and navigation He is an assistant professor at UWM and presently is a visiting professor at Nanchang University China His interests include satellite positioning multi sensor integrated navigation and indoor radio navigation systems HANG GUO received his Ph D in geomatics and geodesy from Wuhan University China with emphasis on navigation He is a professor of the Academy of Space Technology at Nanchang University His interests include indoor positioning multi sensor integrated navigation systems and GNSS meteorology As the corresponding author for this article he may be reached at hguo@ ncu edu cn CLIFFORD MUGNIER received his B A in geography and mathematics from Northwestern State University Natchitoches Louisiana in 1967 He is a fellow of the American Society for Photogrammetry and Remote Sensing and is past national director of the Photogrammetric Applications Division He is the chief of geodesy in the Department of Civil and Environmental Engineering at Louisiana State University Baton Rouge His research is primarily on the geodesy of subsidence in Louisiana and the grids and datums of the world 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 06 05 04 03 02 01 0 01 02 03 Delta x Delta y FIGURE 7 Differences in the coordinates between the IMU fast walking positioning results and the rectified raster image results 10 08 06 04 02 0 02 04 Delta x Delta y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 03 02 01 0 01 02 03 Delta x Delta y MORE ONLINE Further Reading For references related to this article go to gpsworld com and click on More in the navigation bar then on Innovation FIGURE 5 Differences in the coordinates between the IMU slow walking positioning results and the rectified raster image results FIGURE 6 Differences in the coordinates between the IMU normal walking positioning results and the rectified raster image results