Abstract
The influences of instrumental errors, measurement errors, and the fluctuation of refraction angles,etc., on the observation accuracy of vertical angles are analysed. A new target used to observe the vertical angle was designed. Some measures are suggested to reduce the errors in observing vertical angles. They are proved to be effective by experiments.
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Project supported by the National Natural Science Foundation of China
Synopsis of the first author Xiao Fuhe, professor, born in Mar., 1924. Speciality: geodesy or control surveying, electromagnetic distance measurements. Research area: Theory of atmospheric refraction and its influence on surveying.
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Xiao, F., Yan, D. Improving the accuracy of vertical angle observations. J. Cent. South Univ. Technol. 3, 185–190 (1996). https://doi.org/10.1007/BF02652202
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DOI: https://doi.org/10.1007/BF02652202