Real Time Adaptive Step Length Estimation for Smartphone User

Title
Real Time Adaptive Step Length Estimation for Smartphone User
Authors
이정호신범주김철기김재헌이석이택진
Keywords
스마트 폰; 보폭 추정; Indoor positioning; smartphone; step length estimation; linear combination
Issue Date
2013-10
Publisher
2013 13th International Conference on Control, Automation and Systems (ICCAS 2013)
Abstract
An indoor positioning with a high accuracy is still a challenging research area. The error of pedestrian dead reckoning (PDR) is usually caused from both heading and step length error. In this paper, we focus on the reducing of step length estimation. We apply a linear combination consisted of 4 parameters obtained from an acceleration, an angular velocity, and a pedestrian average step length. For an in-flight calibration of step length estimation, we utilize map information and calculate constants for linear combination. We conduct a field test and its result suggests that the proposed algorithm is more accurate than the fixed step length method.
URI
http://pubs.kist.re.kr/handle/201004/46151
ISSN
20937121
Appears in Collections:
KIST Publication > Conference Paper
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