Browse > Article
http://dx.doi.org/10.6109/jkiice.2011.15.2.347

Time-Domain Based Asynchronous IR-UWB Ranging System  

Kim, Hyeong-Rae (광운대학교 임베디드S/W공학과)
Yang, Hoon-Gee (광운대학교 전자융합공학과)
Yang, Seong-Hyeon (광운대학교 전자공학과)
Kang, Bong-Soon (동아대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.2, 2011 , pp. 347-354 More about this Journal
Abstract
This paper presents a time-domain based asynchronous IR-UWB ranging system. This system accomplishes the ranging by detecting peaks from the outputs of a correlator implemented by a FIR filter. To discriminate the peaks due to a signal component, we use windowing for the correlated data within which the data are sorted in amplitude-ascending order and the noise level is calculated. Comparing with the recently presented frequency-domain based ranging system, we show the system structure and explain how it operates for ranging. Moreover, through the simulations, the proposed system is compared with the frequency-domain based system in terms of performance.
Keywords
IR-UWB; Asynchronous ranging; Correlation; FIR; Time-domain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S. Wu, Q. Zhang and N. Zhang, "A Two-step TOA Estimation Method for IR-UWB Ranging Systems", Fifth Annual Conference on Communication Networks and Services Research 2007, pp.302-310, May 2007.
2 최유신, 양훈기, "비동기 IR-UWB 레인징 시스템," 한국해양정보통신학회논문지, 제14권, 3호, pp.587- 594, Mar. 2010.
3 A. F. Molisch, K. Balakrishnan, D. Cassioli, C.-C. Chong, S. Emami, A. Fort, J. Karedal, J. Kunisch, H. Schantz, U. Schuster and K. Siwiak, "IEEE 802.15.4a channel model-final report," IEEE 802.15.4a subgroup, Feb. 2005.
4 W. J. Lee, W. Liu, P. H. J. Chong, B. L. W. Tay and W. Y. Leong, "Design of Applications on Ultra-Wideband Real-Ti-me Location System," IEEE/AIME International Conference on Advanced Intelligent Mechatronics, pp.1359-1364, July 2009.
5 IEEE Computer society, "IEEE 802.15.4a-2007 Part l5.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs)," IEEE, Aug. 2007.
6 Z. Sahinoglu, S. Gezici and I. Guvenc, "Ultra-wideband positioning Systems," Cambridge University Press, 2008.
7 K. Witrisal, G. Leus, G. Janssen, M.Pausini, F. Troesch, T. Zasowski and J.Romme, "Noncoherent ultrawideband systems," IEEE Sig. Processing Mag., vol.26, no.4, pp.48-66, 2009.
8 H. L. V. Trees, "Detection, Estimation, and Modulation Theory. 1st ed," John Wiley & Sons, Inc., 1968.
9 C. Fukao, M. Sasaki, K. Ohno, and M.Itami, "Improving ranging accuracy by two-step TOA estimation for UWB radio," International Symposium on Information Theory and Its Applications(ISITA) 2008, pp.1-5, Dec. 2008.