DIFFERENTIAL GLOBAL NAVIGATION SATELLITE SYSTEM AND DIFFERENTIAL GLOBAL NAVIGATION SATELLITE METHOD USING MAPPING OF POSITION AREA CORRECTION INFORMATION

摘要

A differential global navigation satellite system using mapping of position area correction information includes: a GPS point positioning module for determining a position of a user; an observation matrix configuration information receiving module for receiving observation matrix configuration information from a GPS satellite; an observation matrix configuration module for obtaining an observation matrix based on the observation matrix configuration information; a GPS measurement value-based correction information receiving module for receiving measurement value correction information including the observation matrix; a position-based correction information generation module for generating position-based correction information by multiplying the measurement value correction information by a pseudo-inverse matrix of the observation matrix; a measurement value correction information position area mapping module for obtaining a correlation formula between the measurement value correction information and the position-based correction information; and a position error removal module for differentiating correction information based on the position of the user determined by the GPS point positioning module. The present invention can improve the accuracy of global satellite navigation and simplify the construction of the differential global navigation satellite system.