UWB(Ultra Wideband) radio system is easily affected by strong narrow band interference.Traditional interference suppression methods using adaptive notch filter as a preprocessing unit can hardly be used due to high sampling speed in UWB receivers.In this paper

we proposed a novel parallel notch filter based on TDM (Time-division multiplexing) technique

which can effectively track and eliminate multi-band interference

and extremely raise the interference tolerance margin of the UWB wireless communication system when it is used as a preprocessing unit before dispreading.Moreover

the filter structure has such advantages as good stability

high convergence speed

low signal distortion.The numerical results validated the expected performance and properties.