Description: his article presents the characteristics of the signal used for the Galileo system with respect to those of the GPS system, as well as the adapted receiver architectures. An analysis of the sources of unintentional interference in the GPS ans GALILEO frequency bands reveals the existence of jammers
prone to inducing decreased performance. Different spectrum filtering techniques providing an attenuation of the effects of interference are presented in terms of the nature of the interference. Improvements in receiver architecture are proposed with conclusions indicating the necessity to evaluate these improvements in terms of efficiency and complexity
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