A web base online GPS processing service for rural cadastral applications.

GENDE, M.; GALVAN, R.; BRUNINI, C.

Montevideo

Conferencia; 8th FIG Conference; 2012

International Federation of Surveyors

This paper present a full operational Web based online GPS processing service. Similar services already exist but they are not focus on single frequency observation, and most of them require dual frequency receivers. In contrast our system was planned to provide a solution for rural cadastral application were a decimetric accuracy is required. The core of the system use RTKLIB, an open source program package for GNSS positioning, this make our implementation, also developed under the open source philosophy, easy to implement and replicate by others. At the moment processing is done in differential mode, and the entire SIRGAS-CON network, the CORS network from SIRGAS project is used as the database that provides the base stations. Options includes: processing code or carrier phase data, using broadcasted or precise ephemerides, in static or kinematic mode. The user will obtain not only the coordinates form his observation but also his location via an embedded web page that use Google Map service.