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보행자의 불특정 동작이 미치는 PDR 성능 분석에 대한 사례 연구
Case Study on the Performance Analysis of PDR by Unspecific Motion of Pedestrians

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Authors
신승혁; 이민수; 박찬국
Issue Date
2011-11-04
Publisher
(사)GNSS기술협의회
Citation
The 18th GNSS Workshop
Keywords
PDRstep length estimationwalking status awareness
Abstract
This paper describes the case study on the performance analysis of PDR (Pedestrian Dead
Reckoning) by unspecific motion of pedestrians. PDR is a device which provides position information
of the pedestrian. In general, the step length is estimated using a linear combination of the walking
frequency and the acceleration variance for mobile devices. Step length estimation performance is
evaluated when the pedestrian looking around while walking. A situation is assumed that the subject is
looking around while walking and take wavering steps in a specific spot. In this situation, unspecific
motions which are walk or walk in place or walk back and forth in a short distance or stop for a moment
can be occurred. The step length estimation algorithm with a walking status awareness algorithm is
tested in this situation. This test was verified by two different subjects and the estimation error of this
case was up to 7.6% at the worst case.
Language
Korean
URI
https://hdl.handle.net/10371/74535
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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