Using GPS to Improve Existing Classical Network
Publication: Journal of Surveying Engineering
Volume 120, Issue 2
Abstract
When seeking to strengthen an existing classical network by integrating global positioning system (GPS) observations, one can determine the needed GPS‐derived distance between stations by the method suggested in the present study, rather than by arbitrary selection or by uniform distribution. In some cases, one may not wish to patch an existing network, but in other cases it may be desirable to temporarily prolong the useful life of a terrestrial network by such additions. The work described has principally focused on the practical considerations necessary to improve the test network by addition of a carefully selected set of GPS‐derived distances. The selection is intended to ensure that lines between all pairs of points in the test network meet the required accuracy standards. The results suggest an interesting, but not surprising, finding that the most useful GPS‐derived distances to add are those between stations whose relative precision are the poorest.
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Information & Authors
Information
Published In
Journal of Surveying Engineering
Volume 120 • Issue 2 • May 1994
Pages: 77 - 91
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Apr 23, 1993
Published online: May 1, 1994
Published in print: May 1994
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