Study on Coexisting Interference Detecting Algorithm for Ultra-Wideband Communications

Based on Teager-Kaiser(TK) power computation operator, the novel coexisting narrow band interference(NBI) detecting algorithm for Ultra-wideband(UWB) communications is proposed in this paper. The novel algorithm can estimate the central frequency of NBI accurately by adding the standard frequency analog signal to the TK processing branch and using the discrepancy frequency information provided by the TK computation. The mathematic model and simulation analysis for the novel algorithm is made in this paper. The simulation results show that the measuring function of NBI central frequency can be finished efficiently. Furthermore, the novel algorithm can remove the analog mixer used widely in typical frequency measuring system and reduce the system processing complexity evidently, which can provide the important reference for development of adaptive anti-jamming technology and cognitive technology for UWB communications.