MULTIPATH DISCRIMINATOR MODULE FOR A NAVIGATION SYSTEM

摘要

The invention concerns a multipath discriminator module for a communication and/or navigation system using distributed spectrum modulation, comprising a n input for receiving navigation signals, a sampler for supplying sampling signals at a frequency twice the apparent frequency fc of the code of said signals, and a sub-module for calculating an error signal ek from said sampl ed signals and a locally generated distribution code C/K/L. The invention is characterised in that the sub-module uses the calculation of the real part o f a ratio of two correlation values early relative to the real phase value, sa id values being derived from a correlation between the received signal and a locally generated reference code signal.