Optimized design of next-generation multiplexing schemes for GNSSs

Multilevel and multicarrier component signals are now common in many Global Navigation Satellite Systems challenging the employed multiplexing method that needs to be more flexible and powerful. In this work, we demonstrate how, by acting on two parameters of the digital baseband representation of component signals (the sampling frequency and the central frequency of the baseband complex envelope), it is possible to optimize the performance of the multiplexer, while still obtaining a composite signal that fulfills the required system constraints.