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2022 Journal Impact Factor - 0.6
2022 CiteScore - 1.7




ISSN 2083-6473
ISSN 2083-6481 (electronic version)




Associate Editor
Prof. Tomasz Neumann

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
Korean WA-DGNSS User Segment Software Design
1 Electronics and Telecommunications Research Institute, Daejeon, South Korea
2 Seoul National University, Korea
ABSTRACT: Korean WA-DGNSS is a large scale research project funded by Ministry of Land, Transport and Maritime Affairs Korea. It aims to augment the Global Navigation Satellite System by broadcasting additional signals from geostationary satellites and providing differential correction messages and integrity data for the GNSS satellites. The project is being carried out by a consortium of universities and research institutes. The research team at Electronics and Telecommunications Research Institute is involved in design and development of data processing softwares for wide area reference station and user segment. This paper focuses on user segment software design. Korean WA-DGNSS user segment software is designed to perform several functions such as calculation of pseudorange, ionosphere and troposphere delays, application of fast and slow correction messages, and data verification. It is based on a layered architecture that provides a model to develop flexible and reusable software and is divided into several independent, interchangeable and reusable components to reduce complexity and maintenance cost. The current version is designed to collect and process GPS and WA-DGNSS data however it is flexible to accommodate future GNSS systems such as GLONASS and Galileo.
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Ho Yum, Changdon Kee, and Doyoon Kim, Korean Wide Area Differential Global Positioning System Development Status and Preliminary Test Results, International Journal of Aeronautical and Space Science, Vol. 12, No. 3, 2011, pp. 225-233
Alan Dennis, Barbara Haley Wixom and David Tegarden, Systems Analysis and Design with UML, 4th Edition, Wiley, February 1, 2012.
RTCA SC-159, Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment, RTCA/DO-229C, November 28, 2001.
FAA Document, Specification of the Wide Area Augmentation System (WAAS), FAA-E-2892B, 1999
Sayed Chhattan Shah, Wan Sik Choi, Han Woo Yong, Modular Software Architecture for Korean SBAS User Segment, Electronics and Telecommunications Research Institute, Report No. 6060-2012-0439, 2012
Sayed Chhattan Shah, Wan Sik Choi, Han Woo Yong, Detailed Design of Korean SBAS User Segment Software, Electronics and Telecommunications Research Institute, Report No. 6060-2012-042, 2012
Citation note:
Shah S.C., Choi W.S., Han W.Y., Yun H., Kee C.: Korean WA-DGNSS User Segment Software Design. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 7, No. 1, doi:10.12716/1001.07.01.08, pp. 69-74, 2013

Other publications of authors:

W.S. Choi, S.C. Shah, J.E. Kye, W.Y. Han, H. Yun, C. Kee

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