GALILEO E5a/E5b ACQUISITION TECHNIQUE FOR WEAK SIGNAL ENVIRONMENTS

This paper focuses on the extension of an innovative signal processing technique to Galileo E5a/E5b pilot signals. This algorithm allows processing of long periods of signal in an efficient way by intensive use of the Fast Fourier Transform (FFT). Moreover, by means of long coherent correlations and non-coherent integrations, high sensitivities can be achieved, avoiding the effects of secondary code transitions.