Multiple transit times and least squares for gyroscopic azimuth View Full Text


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Article Info

DATE

1986-12

AUTHORS

Luc M. A. Jeudy

ABSTRACT

Principles of North determination using suspended gyrocompasses are reviewed. Accuracy is evaluated and a procedure with two series of measurements symmetrical with respect to the zero torsion tape position is mathematically proven to be the “best” (minimum variance). Our purpose is to prove that a 20″ accuracy (1 σ) instrument was brought to a level of accuracy four times better by using multiple transit times and least squares fit. Over a total of 15 North determinations based on more than a thousand transit times, an external standard error of 4″.4 was obtained using a WildGAK-1. More... »

PAGES

288-296

References to SciGraph publications

  • 1966-03. A North-Seeking gyro Attachment for the Theodolite in BULLETIN GÉODÉSIQUE (1946-1975)
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02522337

    DOI

    http://dx.doi.org/10.1007/bf02522337

    DIMENSIONS

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