One of the most promising features of the modernized global navigation satellite systems signals is the presence of pilot channels\r\nthat, being data-transition free, allow for increasing the coherent integration time of the receivers. Generally speaking, the increased\r\nintegration time allows to better average the thermal noise component, thus improving the postcorrelation SNR of the receiver\r\nin the acquisition phase. On the other hand, for a standalone receiver which is not aided or assisted, the acquisition architecture\r\nrequires that only the pilot channel is processed, at least during the first steps of the procedure. The aim of this paper is to present\r\na detailed investigation on the impact of the code cross-correlation properties in the reception of Galileo E1 Open Service and\r\nGPS L1C civil signals. Analytical and simulation results demonstrate that the S-curve of the code synchronization loop can be\r\naffected by a bias around the lock point. This effect depends on the code cross-correlation properties and on the receiver setup.\r\nFurthermore, in these cases, the sensitivity of the receiver to other error sources might increase, and the paper shows how in\r\npresence of an interfering signal the pseudorange bias can be magnified and lead to relevant performance degradation.
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