Document Type : Research Paper
Authors
1 School of Surveying and Geospatial Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
2 Professor, School of Surveying and Geospatial Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
3 GNSS Research Centre, Department of Spatial Sciences, Curtin University of Technology, Perth, Australia
Abstract
In this paper, we discussed standard point positioning technique based on the single frequency code-based (C/A) receivers. Then, we presented its performance by means of different measures. However, the use of one single frequency GPS receiver to obtain high-precision positioning make a major challenge due to the environmental biases, in particular the ionospheric effects are handled. The main objective of the present study is to integrate a inospheric model such as Klobuchar Inospheric Model (KIM) with imprecise code (C/A) observations under intense geomagnetic storm conditions, then, to obtain dm level positioning accuracy using Kalman filter. For this purpose we used code (C/A) observations on two different days (February 26, 2018 and December 20, 2015) at Tehran station. The results show that we could obtain multi-dm level positioning accuracy under geomagnetic storm condition by using Kalman filter that will be important in the field of kinematic applications.
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