Overview
Taking benefit of the new Galileo ranging signals, the ENCORE project aims to develop a land management application to cover the following needs of the Brazilian market:
- Geo-referencing: due to 10267/2001 Federal Law, all the 5 billion properties in Brazil must be linked to the Geocentric Reference System for the Americas (SIRGAS), whose objective is the standardisation of South America geodetic systems. All these properties are subject to surveying.
- Urban/rural cadastre: Brazil includes 500 million of hectares for farming, but one third of them are not properly identified, being occupied informally. This is an important drawback to allow and efficient use of the farmland, an optimised urban planning, and to perform tax collection.
The proposed land management application will cover Brazil’s needs in terms of geo-referencing and cadastre planning, using an Enhanced Galileo Code Receiver as baseline. As an example, it will solve the problem of land regularization at the Legal Amazon area of Brazil.
In current GNSS terminals, there is a gap in terms of performances, receiver complexity and price between mass-market and professional devices. Land management applications require precision and accuracy levels from a few to several decimetres that are under-met with current pseudorange-based mass-market receiver and over-met with professional terminals based on phase observables. This situation leads either in a waste of resources (equipment, time, over-qualified staff), or in lack of accuracy. In this project, it is proposed to fill this gap using the new possibilities of the Galileo ranging signals, in particular E5 AltBOC and L1 MBOC. The Enhanced Galileo Code receiver will use them to generate the best possible pseudorange measurements, which are the inputs of the positioning algorithms. This approach reduces the cost of the end-user device, helping the rapid penetration of Galileo technology outside Europe.