Digital Zenith Camera for Vertical Deflection Determination
Geodesy and Cartography 2012
Māris Ābele, Jānis Balodis, Inese Vārna, Ieva Lasmane, Augusts Rubāns, Ansis Zariņš

Recent accomplishments in advancement of accurate astrometric reference star catalogues, development of digital imaging technology, high accuracy tiltmeter technology, and geocentric coordinate availability provided by GNSS, have made possible accurate, fast and automated determination of vertical deflections using astrometric methods. Zenith cameras for this kind of measurements have been developed or are being developed by several research groups. The paper describes a research project by Institute of Geodesy and Geoinformation, intended to design a portable digital zenith camera for vertical deflection determination with 0.1" expected accuracy. Camera components are described, proposed data processing algorithm and preliminary results, obtained with prototype instrument, are presented.

Atslēgas vārdi
digital zenith camera, GNSS, geodetic astronomy, vertical deflections, plumb line, geoid

Ābele, M., Balodis, J., Janpaule, I., Lasmane, I., Rubans, A., Zariņš, A. Digital Zenith Camera for Vertical Deflection Determination. Geodesy and Cartography, 2012, Vol.38, Iss.4, 123.-129.lpp. ISSN 2029-6991. e-ISSN 2029-7009. Pieejams: doi:10.3846/20296991.2012.755324

Publikācijas valoda
English (en)
RTU Zinātniskā bibliotēka.
E-pasts:; Tālr: +371 28399196