Inertial survey systems in the geodetic arsenal |
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| Authors: | Ivan I Mueller |
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| Institution: | (1) Department of Geodetic Science and Surveying, The Ohio State University, 43210 Columbus, Ohio, USA |
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| Abstract: | After reviewing the overall goals of geodesy, the paper focuses on the unique properties of inertial survey systems in the
geodetic arsenal: three-dimensionality; ability to determine relative positions and changes in the anomalous components of
the earth’s gravity field; and independence of line-of-sight observations and the effects of refraction, both traditional
antagonists in geodetic operations. Inertial survey systems, including field and office computational procedures, are briefly
reviewed. Their short-comings are pointed out and certain remedies offered. Future possible improvements in hardware and software,
as well as the development of hybrid systems (e.g., with gravity gradiometers), are discussed.
“Apart from the refinement of existing techniques through the use of computers and the introduction of electromagnetic and
optical distance measurement devices, instrumental research and development has been conducted by scientists and engineers
outside the geodetic profession. This separateness of geodetic instrument research and development is seen as a deficiency
by some, because of the reduced interaction between measurement techniques and the problems to which they apply. However,
geodesy does not seem extraordinarily different from other environmentally oriented sciences in this respect and certainly
has been quick to adopt new techniques once the benefits become evident.” (NAS 1978, p. 6)
From the Keynote Address presented at Second International Symposium on Inertial Technology for Surveying and Geodesy, June
1–5, 1981, Banff, Alberta, Canada. |
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