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DoA Reliability for Distributed Acoustic Tracking
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DOI：10.1109/LSP.2018.2849579.png)
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摘要
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Distributed acoustic tracking estimates the trajectories of source positions using an acoustic sensor network. As it is often difficult to estimate the source-sensor range from individual nodes, the source positions have to be inferred from the direction-of-arrival (DoA) estimates. Due to reverberation and noise, the sound field becomes increasingly diffuse with increasing source-sensor distance, leading to a decreased Direction of Arrival (DoA)-estimation accuracy. To distinguish between accurate and uncertain DoA estimates, this letter proposes to incorporate the coherent-to-diffuse ratio as a measure of DoA reliability for single-source tracking. It is shown that the source positions, therefore, can be probabilistically triangulated by exploiting the spatial diversity of all nodes.
Keyword:
Acoustic sensors
Bayes' methods
smart homes
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期刊
IF:
9.6
论文数:
1.1W
被引数:
1.7W
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