Results 171 to 180 of about 18,055 (209)
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Astronomical Azimuth Determination by Lunar Observations
Journal of Surveying Engineering, - ASCE, 2016AbstractThe moon is the brightest celestial body in the night sky, and it is of some value when determining the astronomical azimuth on a cloudy or foggy night or in a light-polluted city when there is no visible star. Based on the edge observations of the apparent moon using a total station, a global positioning system (GPS) receiver, a portable ...
Yinhu Zhan
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Monitoring the Accuracy Characteristics of an Automatic System for Determining Astronomical Azimuth
Measurement Techniques, 2019The problem of monitoring the accuracy characteristics of an automatic system for determining the astronomical azimuth is solved. The importance of this problem arises from the lack of a high precision standard with which the characteristics of this system could be monitored by comparison. An approach is developed for estimating the increments (changes)
N I Kotov
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Precise Determination of Astronomical Azimuth by the Hour Angle Method of Multiple Meridian Stars
Chinese Astronomy and Astrophysics, 2020Abstract The method for precisely determining the astronomical azimuth using the local hour angle (LHA) of Polaris is only applicable in northern middle latitudes. In addition, the meridian star pair method is limited by the conditions of star selection and matching.
LIU Xin-jiang, ZHENG Yong, LI Chong-hui
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Astronomical azimuth determination by the hour angle of Polaris using ordinary total stations
Survey Review, 2008AbstractThe determination of the astronomical azimuth of a line is not a difficult task for surveyors any more. The aim of this paper is to analyze the theoretical details and errors in order to propose the use of ordinary total stations, for an easy, efficient and accurate determination of the astronomical azimuth of a line by the hour angle method ...
E. Lambrou, G. Pantazis
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Gyroscopy and Navigation, 2021
The paper analyzes how random and systematic components of instrumental error of an automated astronomical system affect the accuracy of the landmark astronomical azimuth. The obtained results can be applied to construct the error mathematical model and to define the mutual orientation of the body axes when designing the system.
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The paper analyzes how random and systematic components of instrumental error of an automated astronomical system affect the accuracy of the landmark astronomical azimuth. The obtained results can be applied to construct the error mathematical model and to define the mutual orientation of the body axes when designing the system.
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ASTRONOMICAL POSITION AND AZIMUTH BY HORIZONTAL DIRECTIONS
Survey Review, 1968AbstractThe author describes a method of carrying out the simultaneous determination of Latitude, Longitude and Azimuth by theodolite horizontal circle readings.
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Survey Review, 2003
AbstractThis work reports the development of a system for fast and accurate determination of astronomical latitude (ϕ), longitude (Λ) and azimuth (A). The system consists of a high-precision total station, with the appropriate software for automatic registration of the measured elements, connected to a GPS receiver through which accurate UTC timing is ...
D. D. Balodimos +3 more
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AbstractThis work reports the development of a system for fast and accurate determination of astronomical latitude (ϕ), longitude (Λ) and azimuth (A). The system consists of a high-precision total station, with the appropriate software for automatic registration of the measured elements, connected to a GPS receiver through which accurate UTC timing is ...
D. D. Balodimos +3 more
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Journal of Surveying Engineering, - ASCE, 2006
The rapid and precise determination of the azimuth information, purely based on the satellite positioning technology of global positioning system (GPS), is tested and evaluated by this paper. The main consideration of using GPS for the azimuth determination is expected to replace the traditional astronomical azimuth measurement, which is believed to be
C C Chang
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The rapid and precise determination of the azimuth information, purely based on the satellite positioning technology of global positioning system (GPS), is tested and evaluated by this paper. The main consideration of using GPS for the azimuth determination is expected to replace the traditional astronomical azimuth measurement, which is believed to be
C C Chang
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ASTRONOMICAL POSITION AND AZIMUTH BY HORIZONTAL DIRECTIONS: A RIGOROUS SOLUTION
Survey Review, 1971AbstractThe author describes a method of obtaining a Least-Squares solution to the simultaneous determination of Longitude and Azimuth, and Latitude and Azimuth, by the method of horizontal directions.
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Survey Review, 2004
Abstract Determination of astronomical Azimuth from a Fixed station A to a Trigonometrical point B, seen from A, constitutes a problem resolvable in different ways. If point B is not present, we can employ a geodetic TARGET to calculate astronomical azimuth from solar observations, and consider such azimuth as a geodetic azimuth [6].
A Vassallo
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Abstract Determination of astronomical Azimuth from a Fixed station A to a Trigonometrical point B, seen from A, constitutes a problem resolvable in different ways. If point B is not present, we can employ a geodetic TARGET to calculate astronomical azimuth from solar observations, and consider such azimuth as a geodetic azimuth [6].
A Vassallo
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