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Design of an extended-range, three-wavelength distance-measuring instrument (1979)

Levine, J. ; Moody, S. E.

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Publication Date: 2019-06-27

Description: The paper describes an extension of current multiwavelength electromagnetic distance measurement (EDM) techniques which should allow the range of multiwavelength measurements to be extended to approximately 50 km. The basic modification needed is the replacement of the retroreflector commonly used by an active station containing lasers and a microwave source. Because the system will always be operated as a full three-wave-length instrument, accuracies of about 5 x 10 to the -8th at 50 km should be obtainable on a routine basis under reasonably clear weather conditions.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: Tectonophysics; 52; 1979

Format: text

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