A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preliminary Observations of Astronomical Coordinates by the SDUST/NAO Digital Zenith Tube
The digital zenith tube (DZT) is developed based on the astrogeodetic and photogrammetric theory. One prototype of DZT integrating techniques of GPS and CCD photogrammetry has been developed jointly by Shandong University of Science and Technology (SDUST) and National Astronomical Observatories (NAO) of Chinese Science Academy, China. It can automatically estimate astronomical coordinates in real time by CCD star image processing and GPS data processing. The DZT’s errors are analyzed in three aspects, namely, the instrument error, observation error and data processing error. Reliability and accuracy of DZT integrating GPS and CCD are verified by the practical field operations. Observing results on many unknown points by the repeated observations of each point show the internal precision of the astronomical latitude and longitude. Observing results on several known points and the comparison with the EGM2008-derived results verify the external accuracy of the DZT.
Preliminary Observations of Astronomical Coordinates by the SDUST/NAO Digital Zenith Tube
The digital zenith tube (DZT) is developed based on the astrogeodetic and photogrammetric theory. One prototype of DZT integrating techniques of GPS and CCD photogrammetry has been developed jointly by Shandong University of Science and Technology (SDUST) and National Astronomical Observatories (NAO) of Chinese Science Academy, China. It can automatically estimate astronomical coordinates in real time by CCD star image processing and GPS data processing. The DZT’s errors are analyzed in three aspects, namely, the instrument error, observation error and data processing error. Reliability and accuracy of DZT integrating GPS and CCD are verified by the practical field operations. Observing results on many unknown points by the repeated observations of each point show the internal precision of the astronomical latitude and longitude. Observing results on several known points and the comparison with the EGM2008-derived results verify the external accuracy of the DZT.
Preliminary Observations of Astronomical Coordinates by the SDUST/NAO Digital Zenith Tube
Sustain. Civil Infrastruct.
Tapase, Anand (editor) / Lee, Jeffrey (editor) / Zhang, Lei (editor) / Yuan, Jiajia (author) / Guo, Jinyun (author) / Shen, Yi (author) / Dai, Jie (author) / Liu, Xin (author) / Kong, Qiaoli (author)
Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference ; 2021 ; NanChang, China
2021-07-11
14 pages
Article/Chapter (Book)
Electronic Resource
English
| Online Contents | 2001
| British Library Online Contents | 2001
| British Library Online Contents | 2001
| British Library Online Contents | 2001
| Online Contents | 2009