Abstract:In the perspective of communication countermeasure, by the way of frequency analysis, this study analyzed the effect of noise jamming signal on Time Hopping-Pulse Position Modulation-Ultra Wide Band(TH-PPM-UWB) communication system. The jamming results of noise jamming signal to the Ultra Wide Band(UWB) communication system were simulated in the Monte Carlo experiment by MATLAB program, and the relationship among the signal power, bandwidth, center frequency and Bit Error Ratio(BER) were given. It has laid the theoretic foundation for manufacturing practical equipment.