Análisis de los servicios de posicionamiento en tiempo real disponibles en Colombia, aplicables al mejoramiento de datos GNSS en proyectos de barrido predial masivo

Abstract

Georeferencing techniques supported by real-time differential correction systems - RTDCS, have evolved from transmission by radio-modems, through RTCM message transmission services (Radio Technical Commission for Maritime Services) or native files using the Internet to the offer of transmission services for these corrections via satellite. According to the Economic Commission for Latin America and the Caribbean - ECLAC, as of 2018 45.5% of the population accesses the Internet; meanwhile the vast rural areas still await the promised connectivity. These conditions extrapolated to Colombia, oblige the evaluation of these services. The private alternatives available in Colombia (offer, coverage, technical characteristics and availability) will be explored, contrasting them with the real-time services that the Agustín Codazzi Geographical Institute – ACGI is implementing. As a result of this analysis, the ACGI seeks to suggest strategies that support the validation of the results in coordinates obtained through the application of different alternatives to the ACGI real-time services, in the Massive Property Sweep processes contemplated in the document: Council National Economic and Social Policy - CONPES 3958 of 2019.