title: Sensor saturation compensated smoothing algorithm for inertial sensor based motion tracking.
abstract: In this paper, a smoothing algorithm for compensating inertial sensor saturation is proposed. The sensor saturation happens when a sensor measures a value that is larger than its dynamic range. This can lead to a considerable accumulated error. To compensate the lost information in saturated sensor data, we propose a smoothing algorithm in which the saturation compensation is formulated as an optimization problem. Based on a standard smoothing algorithm with zero velocity intervals, two saturation estimation methods were proposed. Simulation and experiments prove that the proposed methods are effective in compensating the sensor saturation.
authors.affiliation: Department of Electrical Engineering, University of Ulsan, Mugeo-dong, Namgu, Ulsan 680-749, Korea. khanhdq86@yahoo.com.
authors.forename: Quoc Khanh
authors.initials: QK
authors.lastname: Dang
authors.affiliation: Department of Electrical Engineering, University of Ulsan, Mugeo-dong, Namgu, Ulsan 680-749, Korea. yssuh@ulsan.ac.kr.
authors.forename: Young Soo
authors.initials: YS
authors.lastname: Suh
mesh_terms: D061725:Accelerometry / Q000295:instrumentation* / Q000379:methods*; D000465:Algorithms; D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted