A new function-based computerized ionospheric tomography algorithm

Author

Ming Ou ; Li Chen ; Xiao Yu ; Weimin Zhen

Author_Institution

Sch. of Electron. Inf., Wuhan Univ., Wuhan, China

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

A new function-based computerized ionospheric tomography (CIT) algorithm for beacon measurements from satellite is proposed in this paper. It employs relative TEC measurements as input source data, and spherical harmonic function (SHF) and empirical orthogonal functions (EOF) as the basis function to represent spatial and temporal variation of ionosphere. Truncated singular value decomposition (TSVD) regularization is proposed for solving the ill-posed matrix inversion problem. The accuracy and reliability of this algorithm has been verified by simulated results.

Keywords

computerised tomography; ionospheric techniques; matrix inversion; singular value decomposition; total electron content (atmosphere); TEC measurements; beacon measurements; empirical orthogonal functions; function-based computerized ionospheric tomography algorithm; input source data; matrix inversion; satellite; spherical harmonic function; truncated singular value decomposition regularization; Image reconstruction; Ionosphere; Matrix decomposition; Receivers; Satellite broadcasting; Satellites; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929788

Filename

6929788