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InPhase: Phase-based Ranging and Localization
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DOI：10.1145/3494542.png)
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摘要
En 中文
Ranging and subsequent localization have become more and more critical in today's factories and logistics. Tracking goods precisely enables just-in-time manufacturing processes. We present the InPhase system for ranging and localization applications. It employs narrowband 2.4GHz IEEE 802.15.4 radio transceivers to acquire the radio channel's phase response. In comparison, most other systems employ time-of-flight schemes with UltraWideband transceivers. Our software can be used with existing wireless sensor network hardware, providing ranging and localization for existing devices at no extra cost. The introduced Complex-valued Distance Estimation algorithm evaluates the phase response to compute the distance between two radio devices. We achieve high ranging accuracy and precision with a mean absolute error of 0.149mand a standard deviation of 0.104 m. We show that our algorithm is resilient against noise and burst errors from the phasedata acquisition. Further, we present a localization algorithm based on a particle filter implementation. It achieves a mean absolute error of 0.95m in a realistic 3D live tracking scenario.
Keyword:
Localization
ranging
distance estimation
phase-based
phase response
wireless sensor network
期刊
IF:
4.7
论文数:
996
被引数:
2.0K
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