Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
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Refining the Ionospheric Model for GPS Positioning in Regional Area
Keisuke NishimotoMasaharu OhashiYukihiro KuboSueo Sugimoto
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2014 Volume 27 Issue 9 Pages 374-383

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Abstract

In general GPS positioning, ranging errors due to the ionosphere are corrected by so-called Klobuchar’s ionospheric model. However, it is well known that the model may correct about only 50[%] RMS ionospheric errors. On the other hand, it is reported that SCHA (Spherical Cap Hamonics Analysis) ionosphere model well works in a regional area such as the sky over Japan. In this paper, therefore, we propose a method to provide more accurate parameters of the regional Klobuchar model based on SCHA ionosphere model.

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© 2014 The Institute of Systems, Control and Information Engineers
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