Patent ID: 8681042
Filing Date: 2014-03-25
Classification: G01S,H04B

Abstract:
1. A system for receiving a radionavigation signal, notably in a jammed medium, emitted by a satellite of a satellite positioning system, the system comprising: at least one first multi-correlator and at least one second multi-correlator disposed in parallel and operating respectively at a frequency F filtering means, disposed upstream of said multi-correlators, of impulse response substantially equal to the waveform of the signal emitted by the satellite making it possible to perform an aggregate of the samples of the signal received, operating at the sampling frequency F a delay line, disposed on the branch, between said filtering means and said second multi-correlator, comprising a set of delay modules with controlled individual activation/deactivation, disposed in series, a delay module being adapted for causing a delay of a sampling period of the signal emitted by the satellite equal to the inverse of the sampling frequency F means for sub-sampling at the frequency F demodulation means for eliminating the Doppler effect, disposed between said sub-sampling means and said first and second multi-correlators.