Uwb respect to their strong of the time derivative

摘要

The present invention relates to a receiver uwb to their strong of temporal drift. After translation in the baseband by means of a demodulator in quadrature (440), the uwb pulse signal received is integrated over successive time windows (461,462), and then sampled (471,472). The complex samples are then correlated (480) with a sequence encoding of the transmitter then transmitted to the one hand to a phase estimator (492) and a demodulation module / detection (491). This latter is the symbol transmitted and the supplies to the estimator which eliminates the effect of the modulation in order to estimate at each time - symbol, the phase of the complex samples. A module of the tracking of phase rotation (493) determines a phase rotation is compensated for, and a phase rotation is not compensated for a reference instant. The control means (495) deduced from the phase rotation is not compensated for a time shift to be applied to the windows of integration.