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http://dx.doi.org/10.7236/JIWIT.2011.11.2.231

Accuracy Improvement Scheme for Location Awareness based on UWB system  

Choi, Young-Hoon (광운대학교 전파공학과)
Bae, Jung-Nam (광운대학교 전파공학과)
Kim, Jin-Young (광운대학교 전파공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.2, 2011 , pp. 231-236 More about this Journal
Abstract
In recent years, LBS(Location Based Service) is applied in many different fields. Therefore, various location-aware schemes have been studied. In the location awareness system using time dependent algorithm, TOA(Time of Arrival) or TDOA(Time Difference of Arrival) algorithm, distortion of a signal by AWGN(Additive White Gaussian Noise) and multi-path effects cause the degradation of location awareness performance. In this paper, the unexpected noise is eliminated by averaging multiple pulses in order to overcome the degradation of performance. Also, we research the technique for improving the performance of the location awareness by detecting direct-path signal with adjusting threshold.
Keywords
Location awareness; UWB; TDOA; Detection of direct-path signal;
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