Title :
Signal Frequency and Bandwidth Effects on the Performance of UWB Time-Reversal Technique
Author :
Khaleghi, A. ; El Zein, G.
Author_Institution :
Inst. d´´Electron. et de Telecommun. de Rennes, Rennes
Abstract :
Time reversal (TR) is a technique that can achieve remarkable temporal focusing (delay spread reduction) and spatial focusing in the context of wideband multipath propagation channels. In this paper, based on wideband measurements in reverberation chamber (RC) channel, we predict the characteristics of TR on the temporal compression and the spatial focusing. For the first time, we have analyzed the effects of the signal bandwidth on the temporal focusing and spatial focusing. Furthermore, the influence of the lower frequency band of the signal on the special focusing is demonstrated.
Keywords :
bandwidth allocation; broadband networks; multipath channels; signal sampling; ultra wideband communication; RC channel wideband measurements; UWB time-reversal technique; bandwidth effects; broadband communication; delay spread reduction; reverberation chamber channel; signal frequency; spatial focusing; temporal compression; temporal focusing; wideband multipath propagation channels; Antenna measurements; Antennas and propagation; Bandwidth; Frequency domain analysis; Frequency measurement; Receiving antennas; Reverberation chamber; Signal analysis; Time measurement; Wideband;
Conference_Titel :
Antennas and Propagation Conference, 2007. LAPC 2007. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
1-4244-0776-1
Electronic_ISBN :
1-4244-0776-1
DOI :
10.1109/LAPC.2007.367440
