the present invention relates to a process for measuring the impulse response of a channel between a transmitter (10) and a receiver (20), to provide, by means of a transmitter (10) on the channel, a pseudo random code (pn) to demodulate the transmission code, the signal received by the edit receiver (20).then the signal du00e9modulu00e9 correlated with a pseudo random code (pn code) is received, the reception code is identical to the transmission code but lower flow rate by a factor of landslide (1 / k), and from the result of the correlation response have risen - of that channel.;according to a feature of the present invention, the transmission code (pn) is such that its variation with time (c1 (t) is periodic with a period (tm) less than the total length.ct of the transmission code (pn) multiplied by the factor of landslide (1 / k) and the pn code is received) is such that its variation with time (c (t) is periodic with a period shorter than the duration of the slip factor (tm) (1 / k)..;the present invention also relates to a system for the implementation of this process.
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