![]() Exploring the distribution and dynamics of functional regions using mobile phone data and social media data. In order to further improve positioning accuracy, this paper proposes an indoor vision/INS integrated mobile robot navigation method using multimodel-based multifrequency Kalman filter. Jinzhou Cao (), Wei Tu, Qingquan Li, Meng Zhou, Rui Cao (2015). Comparison of urban human movements inferring from multi-source spatial-temporal data. The elevation accuracy of flat area is better than 0.3 m, although it is slightly lower than the results of field calibration, it can basically meet the requirements of 1 10 000 elevation control points. Rui Cao, Wei Tu, Jinzhou Cao (), Qingquan Li (2016). ![]() Acta Geodaetica et Cartographica Sinica, 2017, 46 (3): 269277 (in Chinese). The accuracy is compared with the field calibration results after the COVID-19, and the results show that the plane error of the non-field calibration is 11.597☓.693 m and the minimum value is 7.115 m. System design and key technologies of the GF-3 satellite J. With this method, during the first half of 2020, the calibration parameter configuration and data processing of GF-7 satellite laser altimeter was not affected, even the field calibration can't be implemented due to the negative impact of the COVID-19. Acta Geodaetica et Cartographica Sinica 2017, Vol. The field-free on orbit geometric calibration test is carried out by using the open topographic reference data and the basic geographic information of DOM and LiDAR DSM in a certain area, which has greatly improved the accuracy of the laser altimetry data. Based on the analysis of the characteristics of the GF-7 satellite laser altimeter, a rigorous geometric positioning model is constructed. In view of the linear system full waveform laser altimeter loaded on the GF-7 satellite, a non-field step by step calibration method based on terrain and waveform matching is proposed. The tube point cloud is divided into x segments equally along the length of the tube, and the projection and noise reduction are performed for each segment. EI CSCD 2015101071-1077,7 Acta Geodaetica et Cartographica Sinica (41201478 41574009) Gauss projection oblique deformed ellipsoid least square method coordinate system. On- orbit geometric calibration without field site is a key problem for future multi-beam laser altimetry satellites. Cehui Xuebao/Acta Geodaetica et Cartographica Sinica 10011595 SinoMaps Press Cellular Polymers 02624893 14782421 Rapra Technology Ltd.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |