A blind linear receiver for multi-antenna impulse radio ultra-wideband（UWB）communication systems was proposed.Without the need of channel information

specific properties of the received data imposed by the precoded space-time block codes（STBC）could be exploited to estimate the coefficients of the receiver

which subsequently recovered the transmitted symbols.Simulations show that

with the increasing of the data block for estimation

the performance of the blind receiver approaches that of the coherent one.