Fixation by Hidden Points Bar from One Theodolite
Publication: Journal of Surveying Engineering
Volume 131, Issue 4
Abstract
Position fixing by hidden points bar from one theodolite is an Industrial Surveying practice used as a last resort in difficult environments of measurements. Determination of the coordinates of inaccessible points sought is performed by least squares adjustment with constraints. Conventional methods of coordinate determination check the efficiency of the method. In the present adjustment, normally of low redundancy, the assignment of accurate provisional values to the aforementioned coordinates constitutes an essential task.
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Acknowledgment
The writer is thankful to Dr. A. L. Allan, retired Reader at UCL, for his helpful advice on hidden points fixation techniques during Industrial Surveying Practicals at Foster Court.
References
Allan, A. L. (1993). Practical surveying and computations, Butterworth-Heinemann, Oxford, U.K.
Antonopoulos, A. (1994). Personal notes on industrial surveying practicals, University College London, London.
Davidson, M. (1947). Elements of mathematical astronomy, Hutchinson’s Scientific and Technical Publications, London.
Mikhail, E. M. (1976). Observations and least squares, IEP-A Dun-Donnelley, New York.
Vlahos, D. (1987). Topography (in Greek), Vol. II. AUTh Publications, Salonica.
Information & Authors
Information
Published In
Journal of Surveying Engineering
Volume 131 • Issue 4 • November 2005
Pages: 113 - 117
Copyright
© 2005 ASCE.
History
Received: Feb 10, 2003
Accepted: Dec 29, 2004
Published online: Nov 1, 2005
Published in print: Nov 2005
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