EarphoneTrack

Cao, Gaoshuai; Yuan, Kuang; Xiong, Jie; Yang, Panlong; Yan, Yubo; Zhou, Hao; Li, Xiangyang

doi:10.1145/3384419.3430730

Cited by 30 publications

(1 citation statement)

References 35 publications

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“…Ear-AR [47] uses the IMU in earphones and smartphones to track the indoor user's location and gazing orientation. When the embedded microphone and speaker in the wired or wireless earphones have already formed a transceiver pair, EarphoneTrack [48] proposes to track either the microphone or speaker with this pair. Unlike what we do with AIM, these approaches are effective only in the short range, specifically between wearable devices and users' smartphones.…”

Section: Acoustics-based Trackingmentioning

confidence: 99%

Indoor Drone Localization and Tracking Based on Acoustic Inertial Measurement

Sun,

Wang,

Mottola

et al. 2024

IEEE Trans. on Mobile Comput.

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We present Acoustic Inertial Measurement (AIM), a one-of-a-kind technique for indoor drone localization and tracking. Indoor drone localization and tracking are arguably a crucial, yet unsolved challenge: in GPS-denied environments, existing approaches enjoy limited applicability, especially in Non-Line of Sight (NLoS), require extensive environment instrumentation, or demand considerable hardware/software changes on drones. In contrast, AIM exploits the acoustic characteristics of the drones to estimate their location and derive their motion, even in NLoS settings. We tame location estimation errors using a dedicated Kalman filter and the Interquartile Range rule (IQR) and demonstrate that AIM can support indoor spaces with arbitrary ranges and layouts. We implement AIM using an off-the-shelf microphone array and evaluate its performance with a commercial drone under varied settings. Results indicate that the mean localization error of AIM is 46% lower than that of commercial UWB-based systems in a complex 10m×10m indoor scenario, where state-of-the-art infrared systems would not even work because of NLoS situations. When distributed microphone arrays are deployed, the mean error can be reduced to less than 0.5m in a 20m range, and even support spaces with arbitrary ranges and layouts.

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Section: Acoustics-based Trackingmentioning

confidence: 99%