The next generation of Global Navigation Satellite Systems (GNSS), such as Galileo [1] and GPS modernization [2], will use signals with equal code and bit periods, which will introduce a potential sign transition in each segment of the signal processed in the acquisition block. If FFT is used to perform the correlations a sign transition occurring within the integration time may cause a splitting of the main peak of the Cross Ambiguity Function (CAF) into two smaller lobes along the Doppler shift axis [3]. In this paper a method to overcome the possible impairments due to the lobe splitting is proposed and validated by simulation.

GNSS signal acquisition in the presence of sign transitions / Sun, Kewen; LO PRESTI, Letizia; Fantino, Maurizio. - STAMPA. - (2009), pp. 1-8. (Intervento presentato al convegno ENC - GNSS 2009 tenutosi a Naples, Italy nel 3-6 May, 2009).

GNSS signal acquisition in the presence of sign transitions

SUN, KEWEN;LO PRESTI, Letizia;FANTINO, MAURIZIO
2009

Abstract

The next generation of Global Navigation Satellite Systems (GNSS), such as Galileo [1] and GPS modernization [2], will use signals with equal code and bit periods, which will introduce a potential sign transition in each segment of the signal processed in the acquisition block. If FFT is used to perform the correlations a sign transition occurring within the integration time may cause a splitting of the main peak of the Cross Ambiguity Function (CAF) into two smaller lobes along the Doppler shift axis [3]. In this paper a method to overcome the possible impairments due to the lobe splitting is proposed and validated by simulation.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2290713
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