Title :
An application of envelope analysis for UWB signal acquisition
Author :
Xu, Hong-Guang ; Zhang, Qin-yu ; Liu, Xiao-Lei ; Wang, Huan ; Xiao-Lei Li
Author_Institution :
Commun. Eng. Res. Centre, Harbin Inst. of Technol., China
Abstract :
Ultra-wideband (UWB) signal has rich multipath components in indoor environment, and the clustering phenomenon is observed in the receiver. In order to fit the measurements data, some UWB channel models are established to describe this property. In this paper, a method is introduced to extract the envelope of UWB signal utilizing wavelet transform. The expressions in time domain are provided and the envelope is extracted in low signal noise ratio (SNR). The simulation results show that the method of envelope analysis can be fit for both parameterized channel model and the one of non-parameterized. It implies that conventional envelope analysis could be used in acquisition of UWB signal.
Keywords :
indoor radio; mobile radio; multipath channels; signal detection; time-domain analysis; ultra wideband communication; wavelet transforms; UWB channel models; UWB signal acquisition; clustering phenomenon; envelope analysis; indoor environment; multipath components; signal noise ratio; time domain expressions; ultrawideband signal; wavelet transform; Data mining; Delay effects; Information technology; Signal analysis; Signal processing; Signal resolution; Signal to noise ratio; Time domain analysis; Wavelet transforms; Wireless communication;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1567001
