Precise Point Positioning (PPP)
IBGE-PPP (Precise Point Positioning or Precise Absolute Positioning) is an on-line service for the GPS (Global Positioning System) data post-processing. It allows GPS users to obtain high precision coordinates in the Geocentric Reference System for the Americas (SIRGAS2000) and in the International Terrestrial Reference Frame (ITRF). In GPS positioning, the term Precise Point Positioning normally refers to the process of obtaining station positions by means of carrier wave observations collected by dual frequency receivers in combination with IGS (International GPS Service) products.
IBGE-PPP results do not depend on any adjustment of the geodetic network and is not associated with performances or adjustments of the planimetric network. Thus, the results obtained through this service will present a small difference in relation to those available in the Geodetic Data Bank (BDG).
IBGE-PPP processes GPS data that were collected in static or kinematic modes from single or dual-frequency receivers. Only GPS data tracked after February 25th of 2005 are accepted, since that was the date when SIRGAS2000 was officially adopted in Brazil.
To use this service users need the following information:
Results will be sent by e-mail, provided by users when submitting data for processing. This positioning service uses the CSRS-PPP processing application developed by the Geodetic Survey Division of Natural Resources of Canada (NRCan).
In order to provide results with better quality through the IBGE-PPP service, the following enhancements were implemented on November 30, 2013: