The present invention relates to a multi-antenna signal receiver UWB pulse in which an RF front end (330) is shared between the various antennas (3101, ..., 310M). The receiver includes a code multiplexing stage (320) upstream of the RF front end and a code demultiplexing stage (340) downstream of the front end. The codes used for multiplexing and demultiplexing are orthogonal codes with a submultiple rhythm of the snippet rhythm of the code used on transmission for the modulation of the UWB pulse signal.
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