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http://dx.doi.org/10.5916/jkosme.2013.37.2.213

An improvement algorithm for localization using adjacent node and distance variation analysis techniques in a ship  

Seong, Ju-Hyeon (한국해양대학교 전기전자공학과)
Lim, Tae-Woo (한국해양대학교 기관공학부)
Kim, Jong-Su (한국해양대학교 기관시스템공학부)
Park, Sang-Gug (위덕대학교 컴퓨터공학과)
Seo, Dong-Hoan (한국해양대학교 전기전자공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.2, 2013 , pp. 213-219 More about this Journal
Abstract
Recently, with the rapid advancement in information and communication technology, indoor location-based services(LBSs) that require precise position tracking have been actively studied with outdoor-LBS using GPS. However, in case of a ship which consists of steel structure, it is difficult to measure a precise localization due to significant ranging error by the diffraction and refraction of radio waves. In order to reduce location measurement errors that occur in these indoor environments, this paper presents distance compensation algorithms that are suitable for a narrow passage such as ship corridors without any additional sensors by using UWB(Ultra-wide-band), which is robust to multi-path and has an error in the range of a few centimeters in free space. These improvement methods are that Pythagorean theory and adjacent node technique are used to solve the distance error due to the node deployment and distance variation analysis technique is applied to reduce the ranging errors which are significantly fluctuated in the corner section. The experimental results show that the number of nodes and the distance error are reduced to 66% and 57.41%, respectively, compared with conventional CSS(Chirp spread spectrum) method.
Keywords
Location technology; Ship; UWB; Bilateration; Distance variation analysis technique;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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