Abstract
An important electromagnetic interference (EMI) scenario and a useful approach for investigating the anti-interference ability of the ultra wideband (UWB) system, operated in 3.1–10.7GHz, are presented in this paper. To analyze the EMI, a UWB signal model was built firstly, along with its four typical UWB channels, under the WiMax interfering signal existence; then, based on the models of the signals and the channels, the UWB transmission performances under the interfering conditions are investigated. Simulated results show that the UWB system can be greatly interfered by the EMI signal; finally, some effective solutions are given. It is pointed out that the existing UWB specifications should be more strictly regulated when the WiMax EMI is considered in our proposed scenario.
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