Multipath discriminator module for a navigation system

Details Multipath discriminator module for a navigation system Multipath discriminator module for a navigation system

H - Electricity

04

B

H04B 1/707 (2011.01)

Patent

CA 2450940

The invention concerns a multipath discriminator module for a communication and/or navigation system using distributed spectrum modulation, comprising an 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 sampled 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 of a ratio of two correlation values early relative to the real phase value, said values being derived from a correlation between the received signal and a locally generated reference code signal.

Module discriminateur de trajets multiples pour un système de communication et/ou de navigation qui met en oeuvre une modulation à spectre réparti, module qui présente une entrée apte à recevoir des signaux de navigation, un échantillonneur pour fournir des signaux échantillonneurs à une fréquence double de la fréquence apparente fc du code desdits signaux, ainsi qu'un sous-module de calcul d'un signal d'erreur e¿k? à partir desdits signaux échantillonnés et d'un code de répartition C/K/L généré localement, caractérisé en ce que le sous module met en oeuvre le calcul de la partie réelle d'un rapport de deux valeurs de corrélation en avance par rapport avec la valeur de phase réelle, ces valeurs provenant d'une corrélation entre le signal reçu et un signal de code de référence généré localement.

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