주변국 위성항법보정시스템(DGPS)의 신호분석 및 대응 방안

A Study on the Analysis and Countermeasures of neighboring contries DGPS signal

Although the United States removed the SA one of the largest positional error factors from GPS, but still the vessels navigating harbor or approaching waterway are only to use DGPS (Differential GPS). Especially IMO (International Maritime Organization) and IALA (International Association of Marine Aids to Navigation and Lighthouse Authorities) are tending to standardize DGPS positional information to use at every kind of the ocean development such as route dredging construction and nautical chart production as well as maritime navigation. According to this, as the reliability and integrity of DGPS positional information installed and operated by the shore countries are underlined, we try to analyze and evaluate the DGPS signal of Japan and China, sharing the same waters with Korea, how to affect Korean coast and to make countermeasures eventually.