文章基本信息

标题：USER SEGMENT OF KOREAN WIDE AREA GLOBAL NAVIGATION SATELLITE SYSTEM
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作者：SAYED CHHATTAN SHAH
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2015
卷号：76
期号：1
出版社：Journal of Theoretical and Applied
摘要：Korean wide area differential global navigation satellite system augments global navigation satellite system by broadcasting additional signals from geostationary satellites and providing differential correction messages and integrity data for the GNSS satellites. It includes a network of wide area reference stations, wide area master station, ground earth station and geostationary satellites. Wide area reference stations are widely dispersed GNSS data collection sites that monitor and process satellite data to determine satellite orbit and clock drift plus delays caused by atmosphere and ionosphere. This information is then transmitted to wide area master station which creates and broadcasts correction messages through geostationary satellites. The user segment receives and applies correction messages to improve position accuracy and reliability. This study presents a flexible and robust software design and data processing algorithms of user segment of Korean wide area differential global navigation satellite system. The user segment software performs numerous functions such as calculation of ionosphere and troposphere delays, processing of correction messages, and data quality monitoring. It implements numerous tropospheric, ionospheric and position models, supports RINEX and BINEX data exchange formats, and is designed to work in real time and post processing modes. It can also be used in precision and non-precision approach modes. The software is divided into several layers such as Data Processing and Visualization, and can be easily extended to support various interfaces such as web interface and mobile device interface. The current version processes global positioning system and wide area differential global navigation satellite system data but can be easily extended to support various global navigation satellite systems such as GLONASS and Galileo.
关键词：Global Navigation Satellite System; Global Positioning Systems; GPS Augmentation System