Abstract: The invention relates to methods of processing signals subjected to interference. It consists, when this signal is formed of a first wideband channel and of a second narrowband channel modulating one and the same carrier in which these signals are cut off for the duration of the interference, in using a single phase loop and a single code loop to process these two channels simultaneously. It makes it easier to process signals in satellite based navigation systems of the GPS type when they are scrambled by the DME-type distance measuring system signals, as well as more generally making it possible to increase the robustness of the processing by joint processing of the bands broadcast to the users.

Abstract: The invention relates to methods of processing signals subjected to interference. It consists, when this signal is formed of a first wideband channel and of a second narrowband channel modulating one and the same carrier in which these signals are cut off for the duration of the interference, in using a single phase loop and a single code loop to process these two channels simultaneously. It makes it easier to process signals in satellite based navigation systems of the GPS type when they are scrambled by the DME-type distance measuring system signals, as well as more generally making it possible to increase the robustness of the processing by joint processing of the bands broadcast to the users.

Abstract: The invention relates to satellite radionavigation, in particular satellites radionavigation of GPS (Global Positioning System), Galileo, GLONASS (Global Navigation Satellite System, Russian definition) type. The solutions advocated by the state of the art for correcting the ionospheric error through the use of a dual-frequency receiver make the measurement less robust to the dynamic if the band used is narrow and less accurate if the band used is wide. The invention proposes a process comprises step a change of reference of the dual-frequency base to a (mean, offset) base, a correction on at least the offsets loop so as to obtain the offsets speed in this (mean, offset) base, an inverse change of reference so to as calculate on the basis of the offsets speed in the (mean, offset) base the relative speed in the dual-frequency base, and a correction of the code speed for each of the two frequencies by the relative speed obtained in the dual-frequency base.

Abstract: The invention relates to methods of processing satellite navigation signals which also support data.

Abstract: The invention concerns satellite radionavigation, especially GPS (Global Positioning System), Galileo, GLONASS (Global Navigation Satellite System, Russian definition) type satellite radionavigation, etc.