Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-15T02:48:35.513Z Has data issue: false hasContentIssue false
  • English
  • Français

The Use of Airborne Differential GPS to Detect Coordinate and Calibration Errors in DME Navigation Aids

Published online by Cambridge University Press:  21 October 2009

V. Ashkenazi ,
C. J. Hill ,
T. Moore ,
W. Y. Ochieng ,
J. Storey ,
R. Rawlings  and
C. V. Cleasby
V. Ashkenazi
Affiliation:
(IESSG, University of Nottingham)
C. J. Hill
Affiliation:
(IESSG, University of Nottingham)
T. Moore
Affiliation:
(IESSG, University of Nottingham)
W. Y. Ochieng
Affiliation:
(IESSG, University of Nottingham)
J. Storey
Affiliation:
(Eurocontrol)
R. Rawlings
Affiliation:
(Eurocontrol)
C. V. Cleasby
Affiliation:
(Eurocontrol)
Get access Rights & Permissions [Opens in a new window]

Abstract

In May 1993, in support of Eurocontrol's WGS 84 Implementation Programme, a project was undertaken to assess the accuracy of navigation aid coordinates. The exercise involved flying a route over a number of European countries, in an aircraft which was equipped for multi-DME ‘data puddle’ position updating, and which also carried Global Positioning System (GPS) receivers. This test flight, carried out under contract to Eurocontrol, involved two parties, namely the Defence Research Agency (DRA) Bedford, who provided the airborne trials facility and DME data, and the Institute of Engineering Surveying and Space Geodesy (IESSG) at the University of Nottingham, who provided an analysis of the DME coordinate accuracy.

The aim of this test flight was to assess whether it is possible to determine independently the (WGS 84) coordinates of DME ground stations from the air, by using the same DME range measurements which are used to update aircraft position information in-flight. The procedure used to determine DME coordinates involves reversing the position updating principle. Instead of taking the DME ground station coordinates as known points and using the DME range measurements to determine the aircraft's position, the aircraft's position is independently determined (from DGPS) and the range measurements are used to estimate the coordinates of the DME ground stations.

Keywords

1. Coordinates2. Datums3. Differential GPS4. Errors and accuracy
Type
Research Article
Information
The Journal of Navigation , Volume 48 , Issue 1 , January 1995 , pp. 1 - 12
Copyright
Copyright © The Royal Institute of Navigation 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Harlow, R. A. and Richards, G. (1993). Navigation performance using DME, GPS and Inertial Systems. Eurocontrol Experimental Centre Report No. 263, October 1993.Google Scholar
2Ashkenazi, V., Hill, C. J., Moore, T. and Ochieng, W. Y. (1993). DME coordinate accuracy analysis based upon a precisely determined aircraft trajectory. Eurocontrol Experimental Centre Report No. 264, October 1993.Google Scholar
3Ffoulkes-Jones, G. H. and Stewart, M. P. (1993). The Nottingham GPS processing software package. Proc. UKGA 17, 17th Meeting of the United Kingdom Geophysical Assembly, Oxford, April 1993.Google Scholar
4Rapp, R. H., Wang, Y. M. and Pavlis, N. K. (1991). The Ohio state 1991 geopotential and sea surface topography harmonic coefficient models. Report No. 410, Department of Geodetic Science and Surveying, Ohio State University, Columbus, Ohio 43210–1246, August 1991.Google Scholar
5Davis, J. L., Herring, T. A., Shapiro, I. I., Rogers, A. E. E. and Elgered, G. (1985). Geodesy by radio interferometry: effects of atmospheric modelling errors on estimates of baseline length. Radio Sci., 20 (6), 1593–1607, November–December 1985.CrossRefGoogle Scholar
6Ashkenazi, V., Moore, T. and Hill, C. J. (1990). DATUM: a report and software package for the transformation and projection of coordinates. Eurocontrol Experimental Centre Report No. 237, December 1990.Google Scholar
7Ashkenazi, V., Hill, C. J. and Moore, T. (1992). WGS 84 Pilot Survey, Birmingham International Airport, Volume 1. Eurocontrol Experimental Centre Report No. 251, September 1992.Google Scholar
8Perry, B., Rawlings, R. and Loghides, M. (1992). RNAV requirements for a common coordinate system. Proc. Eurocontrol WGS 84 Implementation Workshop, Luxembourg, 16–18 June 1992.Google Scholar