Tampere University of Technology (TUT) has developed receiver technology for different Global Navigation Satellite Systems (GNSS) for the past 15 years. One of the outcomes is the “TUTGNSS” positioning receiver baseband prototype, currently capable to receive GPS L1 and L5 and GALILEO E1 and E5a band signals (when equipped with RF front end(s) capable to receive these bands). The implementation is based on hardware for the computationally intensive parts, controlled by processor software via a register interface.... Read the fully implementation story at: d3_18_ttp_tut_catena_cat-gnss.pdf