Computer Science ›› 2016, Vol. 43 ›› Issue (6): 102-105.doi: 10.11896/j.issn.1002-137X.2016.06.021

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Ultra-wideband Signal Detection Method Based on Hilbert-Huang and Wavelet Packet

LIU Xiao-wen, JIANG Lei, XU Hua and CHEN Xi   

  • Online:2018-12-01 Published:2018-12-01

Abstract: For Hilbert-Huang transform(HHT) is restricted by signal to noise ratio(SNR) in detecting ultra-wideband(UWB) signal, this paper analyzed the stopping criteria for sifting of EMD and wavelet packet denoising,and proposed the method of HHT combining with wavelet packet and the new stopping criteria for sifting.The proposed method was used to detect UWB signal and its performance was compared and analyzed using root-mean-square error.Simulation results show that the UWB signal in strong noise canditions can be accurately reconstructed by the this new method,and the problem that SNR has big impact on HHT is solved.

Key words: Ultra-wideband,Signal detection,Hilbert-Huang transform,Stopping criteria for sifting,Wavelet packet

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