Proposed Methodology for GNSS Network by PPP and analysis of Reliability

The relative GNSS positioning method is traditionally used in geodetic networks. Other GNSS positioning method is the Precise Point Positioning (PPP). In the PPP data from only one GNSS receiver are used and the use of precise ephemeris and satellite clocks corrections are essential. This paper presents a methodology for network development using GNSS data processed by the PPP method and checking their potential in geodetic applications. GNSS data from some RBMC/IBGE stations were used. The PPP processing service used is the provided by IBGE. From the PPP result analyzes were performed to verify the applicability of the methodology described in GNSS network with data by 24, 6 and 4 hours of tracking. After GNSS data adjustment, the global and data snooping testing were applied and also analyzes of the network reliability in order to evaluate the proposed methodology and to verify the influence of tracking time in the results.

Keywords:
GNSS Network; PPP; reliability