Inversion of Ionospheric Electron Density Based on a Constrained Simultaneous Iteration Reconstruction Technique

被引：25

作者：

Liu, Sanzhi ^{[1
,2
]}

Wang, Jiexian ^{[1
]}

Gao, Junqiang ^{[2
]}

机构：

[1] Tongji Univ, Dept Surveying, Shanghai 200092, Peoples R China

[2] Nanjing Univ Technol, Coll Civil Engn, Nanjing 210009, Peoples R China

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2010年 / 48卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Global Positioning System (GPS); ionospheric electron density; simultaneous iteration reconstruction technique (SIRT); tomography; TOMOGRAPHY;

D O I：

10.1109/TGRS.2010.2040829

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In this paper, a new algorithm, which is the constrained simultaneous iteration reconstruction technique (SIRT), is presented for the inversion of ionospheric electron density. This new algorithm uses the smoothing of neighboring pixels in the same layer to create a reasonable constraint matrix. Thus, it overcomes the limitation of conventional SIRT and improves the accuracy of electron density inversion. The reliability and feasibility of the new algorithm and its superiority to the SIRT are demonstrated by numerical simulation experiment and reconstruction results based on the actual GPS observations.

引用

页码：2455 / 2459

页数：5

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