Leveraging Spatial Correlation for Sensor Drift Calibration in Smart Building
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems（2021）
Abstract
Sensor drift is an intractable obstacle to practical temperature measurement in smart building. In this article, we propose a sensor spatial correlation model. Given prior knowledge, maximum a posteriori (MAP) estimation is performed to calibrate drifts. MAP is formulated as a nonconvex problem with three hyper-parameters. An alternating-based method is proposed to solve this nonconvex formulation...
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Key words
Calibration,Temperature sensors,Temperature measurement,Smart buildings,Bayes methods,Correlation,Runtime
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