التفاصيل البيبلوغرافية
| العنوان: |
A Hybrid Dead Reckon System Based on 3-Dimensional Dynamic Time Warping. |
| المؤلفون: |
Chen, Jian, Ou, Gang, Peng, Ao, Zheng, Lingxiang, Shi, Jianghong |
| المصدر: |
Electronics (2079-9292); Feb2019, Vol. 8 Issue 2, p185, 1p |
| مصطلحات موضوعية: |
HYBRID systems, SMARTPHONES, INDOOR positioning systems, CONSUMERS, IEEE 802.11 (Standard) |
| مستخلص: |
In recent years, using smartphones for indoor positioning has become increasingly popular with consumers. This paper presents an integrated localization technique for inertial and magnetic field sensors to challenge indoor positioning without Wi-Fi signals. For dead-reckoning (DR), attitude angle estimation, step length calculation, and step counting estimation are introduced. Dynamic time warping (DTW) usually calculates the distance between the measured magnetic field and magnetic fingerprint in the database. For DR/Magnetic matching (MM), we creatively propose 3-dimensional dynamic time warping (3DDTW) to calculate the distance. Unlike traditional DTW, 3DDTW extends the original one-dimensional signal to a two-dimensional signal. Finally, the weighted least squares further improves indoor positioning accuracy. In the three different experimental scenarios—teaching building, study room, office building—DR/MM hybrid positioning accuracy is about 3.34 m. [ABSTRACT FROM AUTHOR] |
|
Copyright of Electronics (2079-9292) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder