Abstract: A method for determining at least one lineal parameter of a transmission line comprises the following steps: determining at least one measurement of the complex propagation factor ? as a function of frequency on the basis of at least one measurement carried out on the transmission line, determining at least one measurement of the lineal attenuation ? of the transmission line equal to the real part of the measurement of the complex propagation factor ? and/or at least one measurement of the phase factor ? of the transmission line equal to the imaginary part of the measurement of the complex propagation factor ?, filtering the measurement of the lineal attenuation ? and/or the measurement of the phase factor ? on the basis of a polynomial frequency regression model dependent on the physical characteristics of the transmission line.

Abstract: A method for characterizing a segment of a transmission line, a reference signal being injected into the line and a time-domain measurement of the reflection of the reference signal in the line being carried out, the method comprises the following steps: applying a deconvoluting step to the time-domain measurement so as to generate a deconvoluted temporal sequence comprising a plurality of amplitude peaks each corresponding to an impedance discontinuity; removing, from the amplitude of at least one obtained peak, the contribution of at least one secondary reflection of the signal from an impedance discontinuity; deducing, from the temporal position of each peak, a position of an associated impedance discontinuity in the line segment; and deducing, from the amplitude of each peak, an estimate of the real part of the reflection coefficient of a wave reflected from each identified impedance discontinuity.

Abstract: This interference reduction method in a receiver (2) comprising at least two antennas (4, 6), each receiving a signal transmitted through a radio propagation channel, comprises the following steps: —weighting (20) of each of the signals received with a weighting vector associated respectively with a respective antenna of the receiver; —combination (22) of the weighted signals received to obtain a combined received signal; —weighting (24) of a reference signal with another weighting vector; —comparison (26) of the combined received signal and the weighted reference signal to obtain an error; and —determination (28) of the weighting vectors with the help of the maximum a posteriori criterion by maximizing the probability of realization of the said weighting vectors conditionally with the error obtained.

Abstract: This interference reduction method in a receiver (2) comprising at least two antennas (4, 6), each receiving a signal transmitted through a radio propagation channel, comprises the following steps:—weighting (20) of each of the signals received with a weighting vector associated respectively with a respective antenna of the receiver;—combination (22) of the weighted signals received to obtain a combined received signal;—weighting (24) of a reference signal with another weighting vector;—comparison (26) of the combined received signal and the weighted reference signal to obtain an error; and—determination (28) of the weighting vectors with the help of the maximum a posteriori criterion by maximising the probability of realisation of the said weighting vectors conditionally with the error obtained.