Ionospheric time delay modelling using anisotropic IDW

Precise estimation of ionospheric time delay is essential for achieving better positional accuracy. The trans-ionospheric signals are affected due to the existence of anisotropic plasma in the ionosphere. For the first time, a novel model based on anisotropic Inverse Distance Weighting (IDW) with `J...

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Bibliographic Details
Main Authors: Vemuri, Satya Srinivas, Achanta, Dattatreya Sarma, Reddy, Krishna Reddy Desi
Format: Conference Proceeding
Language:English
Subjects:
Delay effects
Delays
Estimation
Global Positioning System
Ionosphere
Satellites
Splines (mathematics)
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Description
Summary:Precise estimation of ionospheric time delay is essential for achieving better positional accuracy. The trans-ionospheric signals are affected due to the existence of anisotropic plasma in the ionosphere. For the first time, a novel model based on anisotropic Inverse Distance Weighting (IDW) with `Jackknife' technique is proposed and is applied in the context of ionospheric time delay modelling for Global Positioning System (GPS). The performance of the proposed anisotropic IDW model is evaluated by comparing with the prominent grid based models (Kriging, Spline and Modified Planar Fit (MPF)).
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2014.6904465