Method and device for processing a pulse train of a modulated signal, in particular an ultra wideband signal modulated by a digital pulse interval modulation

A device for processing a pulse train of a signal modulated by modulation based upon a discrete random time parameter comprising:

• circuitry to perform a first processing on the signal to produce a sampled signal;
• circuitry to perform a second processing on the sampled signal by
• performing at least one correlation processing with a correlation mask to produce correlation values, the correlation mask corresponding to a shape of part of a sampled,
• thresholding the correlation values with a threshold value to produce a second information item corresponding to the threshold correlation values, and
• with two consecutive packets of second information items in each successive block of second information items being shifted by K second information items, with K being based upon a ratio between a sampling period and the base duration;
• and
• circuitry to perform a third processing to detect pulses following the first pulse by taking account of a position of the first pulse, on packets of the second information item, the packets being separated by a duration related to the discrete random time parameter, and with the third processing producing, for each successive block of N second information items, N/K binary information items respectively representing N/K possible positions of the pulses, a logic value of a binary cue defining a presence or absence of a pulse at a possible position.

A device for processing a pulse train of a signal modulated by modulation based upon a discrete random time parameter comprising:

• circuitry to perform a first processing on the signal to produce a sampled signal;
• and
• a digital signal processor to at least
• perform a second processing on the sampled signal by
• perform at least one correlation processing with a correlation mask to produce correlation values, the correlation mask corresponding to a shape of part of a sampled,
• threshold the correlation values with a threshold value to produce a second information items corresponding to the threshold correlation values, and
• with two consecutive packets of second information items in each successive block of second information items being shifted by K second information items, with K being an integer and being based upon a ratio between a sampling period and the base duration, and
• perform a third processing to detect pulses following the first pulse by taking account of a position of the first pulse, on packets of the second information items, the packets being separated by a duration related to the discrete random time parameter, and with the third processing producing, for each successive block of N second information items, with N being an integer and with N/K binary information items respectively representing N/K possible positions of the pulses, a logic value of a binary cue defining a presence or absence of pulse at a possible position.