GPS/Galileo/Glonass Software Defined Signal Receiver

07/09/2012

GNSSs are the latest radio navigation systems in widespread use. The United States Global Positioning System (GPS), the Russian GLONASS and the European Union Galileo positioning system form the core of satellite navigation systems. Traditional GNSS receivers use hardware based digital signal processing. This approach usually provides high performance with the advantage of low power consumption, although the flexibility of the receiver functionality is limited. By using open architectures, component replacement can occur more easily than in a closed system, significantly reducing total ownership costs in the future. Through software defined GNSS receivers, however, the whole signal processing is defined in software. By using such a system, the receiver can be reconfigured depending on the application, providing the receiver with enhanced adaptive capabilities. This work focusses on the hardware development of a GNSS software radio receiver to work at the L1 band, also known as the civilian use band. The key points of the system are its versatility and flexibility and high configurability, offering the highest performance and integration, both for the expert and for the less acquainted user, making it a very competitive solution. The design approach is presented and all the hardware and software developed for this work is explained in detail. The system validation was successfully performed in the field with real environment constraints, proving its capabilities.

Authors in the community:

• 

  P

  Pedro Manuel Lourenço Marques Ferreira

  ist156010

Supervisors of this institution:

• 

  M

  Moisés Simões Piedade

  ist11049

• 

  G

  Gonçalo Nuno Gomes Tavares

  ist13269

electrical-engineering-electronic-engineering-information-engineering - Electrical engineering, electronic engineering, information engineering

eng - English

Instituto Superior Técnico