Premium
Automatic scaling of F layer from ionograms
Author(s) -
Chen Ziwei,
Wang Shun,
Zhang Shunrong,
Fang Guangyou,
Wang Jinsong
Publication year - 2013
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds.20038
Subject(s) - ionogram , ionosonde , scaling , ionosphere , computer science , scale (ratio) , layer (electronics) , algorithm , geophysics , mathematics , geology , physics , geometry , electron density , quantum mechanics , electron , chemistry , organic chemistry
The correct automatic scaling of ionograms is one of the fundamental first steps to obtain ionospheric information. In this paper, new algorithms are proposed to scale F layer traces and separate ordinary ray and extraordinary ray traces from ionograms automatically. The method is mainly based on mathematical morphology, graph theory, and the echo characteristics of the ionosphere. Digital ionogram data from the Chinese Academy of Sciences Digital Ionosonde, installed at Dulan (36°17′N, 98°5′E), were used to demonstrate the data processing procedures.