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http://dx.doi.org/10.3745/KIPSTC.2009.16-C.2.229

Ranging Enhancement using Frequency Offset Compensation in High Rate UWB  

Nam, Yoon-Seok (동국대학교 경주캠퍼스 정보통신공학과)
Jang, Ik-Hyeon (동국대학교 경주캠퍼스 정보통신공학과)
Publication Information
The KIPS Transactions:PartC / v.16C, no.2, 2009 , pp. 229-236 More about this Journal
Abstract
UWB signal with high resolution capability can be used to estimate ranging and positioning in wireless personal area networks. The clock frequency differences of nodes have serious affects on asynchronous ranging methods to estimate locations of mobile nodes. The specification of high rate UWB describes successive TWR method with the estimation of a relative clock frequency offset. In this paper, we complete the ranging equations using relative frequency offset and time information, and propose a method to estimate the exact frequency offsets. We evaluate the ranging algorithms with simulation. The results show that the performances of the algorithms using frequency offsets are very close without noise. But, at noise environment, the method of exact frequency offsets shows better performance than that of relative frequency offsets.
Keywords
High Rate UWB; Indoor Positioning; Ranging; Asynchronous Two-Way Ranging; Frequency Offset;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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