Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis

Ionospheric error modeling is necessary to create reliable global navigation satellite system (GNSS) signals using a GNSS simulator. In this paper we developed algorithms to generate Klobuchar coefficients αn, βn (n = 1, 2, 3, 4) for a GNSS simulator and verified accuracy of the algorithm. The eig...

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Main Authors: Chang-Moon Lee, Kwan-Dong Park
Format: Article
Language:English
Published: The Korean Space Science Society 2011-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2011/v28n1/OJOOBS_2011_v28n1_71.pdf
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author Chang-Moon Lee
Kwan-Dong Park
author_facet Chang-Moon Lee
Kwan-Dong Park
author_sort Chang-Moon Lee
collection DOAJ
description Ionospheric error modeling is necessary to create reliable global navigation satellite system (GNSS) signals using a GNSS simulator. In this paper we developed algorithms to generate Klobuchar coefficients αn, βn (n = 1, 2, 3, 4) for a GNSS simulator and verified accuracy of the algorithm. The eight Klobuchar coefficients were extracted from three years of global positioning system broadcast (BRDC) messages provided by International GNSS service from 2006 through 2008 and were fitted with Fourier series. The generated coefficients from our developed algorithms are referred to as Fourier Klobuchar model (FOKM) coefficients, while those coefficients from BRDC massages are named as BRDC coefficients. The correlation coefficient values between FOKM and BRDC were higher than 0.97. We estimated total electron content using the Klobuchar model with FOKM coefficients and compared the result with that from the BRDC model. As a result, the maximum root mean square was 1.6 total electron content unit.
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spelling doaj.art-56ef907650cc448ab73d53601f61ca8b2024-01-02T00:49:37ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092011-03-01281717710.5140/JASS.2011.28.1.071Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy AnalysisChang-Moon Lee0Kwan-Dong Park1Department of Geoinformatic Engineering, Inha University, Incheon 402-751, KoreaDepartment of Geoinformatic Engineering, Inha University, Incheon 402-751, KoreaIonospheric error modeling is necessary to create reliable global navigation satellite system (GNSS) signals using a GNSS simulator. In this paper we developed algorithms to generate Klobuchar coefficients αn, βn (n = 1, 2, 3, 4) for a GNSS simulator and verified accuracy of the algorithm. The eight Klobuchar coefficients were extracted from three years of global positioning system broadcast (BRDC) messages provided by International GNSS service from 2006 through 2008 and were fitted with Fourier series. The generated coefficients from our developed algorithms are referred to as Fourier Klobuchar model (FOKM) coefficients, while those coefficients from BRDC massages are named as BRDC coefficients. The correlation coefficient values between FOKM and BRDC were higher than 0.97. We estimated total electron content using the Klobuchar model with FOKM coefficients and compared the result with that from the BRDC model. As a result, the maximum root mean square was 1.6 total electron content unit.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2011/v28n1/OJOOBS_2011_v28n1_71.pdfionosphereKlobuchar model coefficientsFourier seriesglobal positioning system
spellingShingle Chang-Moon Lee
Kwan-Dong Park
Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
Journal of Astronomy and Space Sciences
ionosphere
Klobuchar model coefficients
Fourier series
global positioning system
title Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
title_full Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
title_fullStr Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
title_full_unstemmed Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
title_short Generation of Klobuchar Ionospheric Error Model Coefficients Using Fourier Series and Accuracy Analysis
title_sort generation of klobuchar ionospheric error model coefficients using fourier series and accuracy analysis
topic ionosphere
Klobuchar model coefficients
Fourier series
global positioning system
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2011/v28n1/OJOOBS_2011_v28n1_71.pdf
work_keys_str_mv AT changmoonlee generationofklobucharionosphericerrormodelcoefficientsusingfourierseriesandaccuracyanalysis
AT kwandongpark generationofklobucharionosphericerrormodelcoefficientsusingfourierseriesandaccuracyanalysis