| 摘要 |
The system for receiving a radio navigation signal, in particular in a jammed environment, emitted by a satellite of a satellite positioning system, comprises: at least one first multi-correlator (MC1) and at least one second multi-correlator (MC2) disposed in parallel and operating respectively at a frequency Fcode; filtering means (FILT), disposed upstream of said multi-correlators (MC1, MC2); a delay line (LAR), disposed on the branch bypass, between said filtering means (FILT) and said second multi-correlator (MC2); means of sub-sampling (SS_ECH) at the frequency code adapted for sub-sampling the signal transmitted directly and by branching with delay by said filtering means (FILT); and demodulation means (BDB_D) for eliminating the Doppler effect, disposed between said sub-sampling means (SS_ECH) and said first and second multi-correlators (MC1, MC2).
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