High-Precision Kinematic GPS Differential Positioning: Experiences, Results, Integration of GPS With a Ring Laser Strapoown Inertial System

Gunter W. Hein, Gerald Baustert, Bernd Eissfeller, Herbert Landau

Abstract:	There are many fields like geodetic surveying, positioning of airborne sensors (photogrammetric cameras), laser bathymetry, airborne gravimetry, hydrographic surveys, etc. where accuracies in decimeter or even centimeter range in differential positioning are necessary. Using the full potential of the Global Positioning System in a dynamic environment, IAPG has carried out several kine­matic tests with respect to land-based, ship-, and airborne applications using Texas Instruments TI 4100 receivers. After reviewing the main concepts in differential GPS ki­nematic positioning the paper presents experiences and practical results of kinematic GPS tests. Results of a Kalman filter covariance analysis are shown for the inte­gration of GPS phase and pseudo-range data with ring la­ser strapdown inertial systems in order to recover cycle slips and short-time loss of lock in GPS. In particular, the question is discussed to what extent inertial strap­down systems can be used to bridge these times and to maintain centimeter accuracy.
Published in:	Proceedings of the International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1988) September 19 - 23, 1988 The Broadmoor Hotel Colorado Spring, CO
Pages:	129 - 137
Cite this article:	Hein, Gunter W., Baustert, Gerald, Eissfeller, Bernd, Landau, Herbert, "High-Precision Kinematic GPS Differential Positioning: Experiences, Results, Integration of GPS With a Ring Laser Strapoown Inertial System," Proceedings of the International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1988), Colorado Spring, CO, September 1988, pp. 129-137.
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