The method involves resolving a set of network ambiguities. An ionosphere model of ionospheric delays is determined per era per receiver-satellite-matching. An ionospheric phase combination is formed. The network ambiguities and the ionospheric delays are used to estimate an ionospheric phase bias per satellite using an ionospheric phase bias-constraint and a differential code bias-constraint. The ionospheric phase bias is determined as a combination of the ionospheric phase combination, the ionospheric delays and the resolved network ambiguities. Independent claims are also included for the following: (1) a computer readable medium comprising instructions for performing a method processing a set of signals (2) a device for processing a set of signals (3) a method for determining a position of a rover-antenna (4) a computer readable medium comprising instructions for performing a method for determining a position of a rover-antenna (5) a device for determining a position of a rover-antenna.
Method for processing set of global navigation satellite system signal data for e.g. global positioning system, involves using network ambiguities and ionospheric delays to estimate ionospheric phase bias per satellite