Abstract:

The paper introduces generally the current situation and limit of positioning working on remote islands of Vietnam and the advance of positioning technology in the world that is improving accuracy of Global Positioning System through the satellite and ground based augmentation (SBAS and GBAS). These advances have made real time positioning highly accurate from meters to centimeters. In this paper, the solution for improving the accuracy of positioning on the remote islands of Vietnam will be indicated, it involves two parts: The 1st part is building the Geodetic CORS network for the sea and islands of Vietnam, the 2nd part presents the method to build the wide area differential GNSS for the sea and islands of Vietnam. These solutions will be the basis for creating the modern coordinate network for the sea and remote islands of Vietnam.