Studying the Parameterization of Delay Prediction Models: Geographical Versus Atmospheric Parameters

I.M. Ifadis and P. Savvaidis

Abstract:	It is well known that in space to earth techniques, the atmosphere plays a significant role in observations’ accuracy. One of the major effects is the delay, which is introduced as wet and hydrostatic delay. During the last ten-fifteen years a number of investigators performed research work, which lead into the development of a number of mapping functions for both of the delays and for some cases also for the total delay. Although they had the same aim, they approach the problem in two ways. For the first approach mainly atmospheric parameters were used, while lately a preference on the introduction and use of geographical parameters was appeared. Both approaches have a good point of view, but also have some disadvantages. In this report we examine the behavior of these mapping functions using a large amount of data sets well spread all over the world. The results are presented and conclusions and suggestions for a better approach in order to eliminate the error dispersion of the predicted delays are given.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	781 - 790
Cite this article:	Ifadis, I.M., Savvaidis, P., "Studying the Parameterization of Delay Prediction Models: Geographical Versus Atmospheric Parameters," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 781-790.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In