DMB/NTRIP Method for differential correction and position error estimation of GNSS and provision of AIS information via DMB/NTRIP

摘要

The present invention relates to methods to correct satellite navigation and estimate a level of a positional error, capable of obtaining improved positional accuracy by using a TPEG message, provided through a digital multimedia broadcasting (DMB) data channel, and RTCM correction information provided through NTRIP which is the Internet-based RTCM standard. Moreover, the present invention relates to a method to provide automatic vessel identification information based on DMB, capable of providing an AIS message, collected from a specific harbor, to a vessel user through the NTRIP and the TPEG message, provided through the DMB data channel, thereby enabling the vessel user to use AIS information even if the vessel of the user is not equipped with AIS. The present invention includes: a step of broadcasting RTCM correction information through the NTRIP; a step of correcting a pseudo range by using pseudo range correction information; and a step of outputting the corrected pseudo range on an electronic chart.