Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multiple transit times and least squares for gyroscopic azimuth
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.
Multiple transit times and least squares for gyroscopic azimuth
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.
Multiple transit times and least squares for gyroscopic azimuth
Jeudy, Luc M. A. (Autor:in)
Bulletin Gæodésique ; 60
1986
Aufsatz (Zeitschrift)
Englisch
Geodäsie , Geometrie , Geodynamik , Zeitschrift , Mathematik , Mineralogie
Multiple transit times and least squares for gyroscopic azimuth
| Online Contents | 1986
Optimal Location of Extra Gyroscopic Azimuth in Underground Traverses.
| Online Contents | 1993
| UB Braunschweig | 1999
| TIBKAT | 1999
The Schilowsky gyroscopic automobile
| Engineering Index Backfile | 1914