Method to Site Selection and Network Configuration of GNSS Receiving Station for Optimizing Performance of Precise Positioning

摘要

In this study, a four-step procedure was derived to develop the network configuration of Global Navigation Satellite System (GNSS) network receiving (reference) stations. This receiving station network will be used for technology development of GNSS-based land transportation system infrastructure. Based on the proposed procedure, an optimal configuration consisting of four receiving stations was selected for the final network configuration. In the first step, the site requirements were produced for GNSS-based infrastructure technology development by referring to regulations of international organizations. In the second step, a second selection was made from the initial candidates by analysis of the visual measurement and environment test results. In the third step, the final candidates were selected among the candidates from the second stage by analysis of the sky clearance and radio frequency interference. In the fourth step, network-based GNSS precise positioning was analyzed to evaluate the availability of the remaining candidates depending on various network configurations. To evaluate the network candidates, their performance was examined with regard to user positions according to the geometric configuration and baseline distance. Finally, the best network configuration was selected based on the best position performance.