Abstract
Today, many countries are developing their own WADGPS-type systems. The U.S. WAAS is already available for non-aviation users and its full operation is expected by the end of 2003. The European EGNOS and the Japanese MSAS is also in progress. China now propels the SNAS (Satellite Navigation Augmentation System) project, and India made the plan for its GAGAN (GPS And GEO Augmented Navigation) project. Recently, the Ministry of Maritime Affairs and Fisheries of Korea decided to develop Korean WADGPS. It is a very first step for the implementation of practical system. Till now, we have contrived the algorithm for the WADGPS in Korea & East Asia and evaluated its performance by simulations. In this paper, we complemented the positioning algorithm for the actual data processing. We analyzed the performance of the proposed algorithm with the actual data from the reference stations of Korean NDGPS network, which covers almost the whole country.
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