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• W2914731092 abstract "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." @default.
• W2914731092 created "2019-02-21" @default.
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• W2914731092 date "2019-02-05" @default.
• W2914731092 modified "2023-10-17" @default.
• W2914731092 title "A Hybrid Dead Reckon System Based on 3-Dimensional Dynamic Time Warping" @default.
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• W2914731092 doi "https://doi.org/10.3390/electronics8020185" @default.
• W2914731092 hasPublicationYear "2019" @default.
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