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http://dx.doi.org/10.7840/KICS.2011.36C.6.376

An Improved ToA Estimation in a Compressed Sensing-based UWB System  

Le, Tan N. (숭실대학교 정보통신공학부 통신 및 정보처리 연구실)
Kim, Kwang-Yul (숭실대학교 정보통신공학부 통신 및 정보처리 연구실)
Shin, Yo-An (숭실대학교 정보통신공학부 통신 및 정보처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.6C, 2011 , pp. 376-383 More about this Journal
Abstract
Since the first arrival path may not be the strongest path of UWB(Ultra Wide Band) multipath channels, this makes ToA(Time-of-Arrival) estimation becomes a challengeable issue. Furthermore, because of ultra bandwidth of received signals, the compressed sensing theory is employed to reduce the complexity caused by very high Nyquist sampling rate in coherent UWB receivers. In this paper, we propose a ToA estimation scheme which provides precise estimation performance, while exploiting the benefits of compressed sensing-based UWB receivers. Simulation results show that the proposed scheme can outperform other low complexity schemes in a wide range of signal-to-noise ratios.
Keywords
ToA(Time-of-Arrival); Ranging; Compressed Sensing; UWB(Ultra Wide Band);
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