可穿戴传感器标定的实验设计及其后验效率

Lin Ye, S. Su
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引用次数: 1

摘要

本文研究了嵌入在可穿戴微惯性测量单元(μ-IMU)中的三轴加速度计的标定实验设计。首先,针对加速度计模型提出了一种新的线性化策略,该策略与所谓的自动校准方案相关联。在此基础上,提出了一种有效的二十面体设计方法,在理想的实验条件下,可以实现线性化加速度计模型的d -最优性和g -最优性。然而,由于各种技术限制,可穿戴传感器的用户通常无法完全实施所提出的实验方案。为了评估每个单独实验的效率,根据期望的实验特性给出了一个指标。所提出的实验方案已应用于新研制的μ-IMU的自动标定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Design and Its Posterior Efficiency for the Calibration of Wearable Sensors
This paper investigates experimental design (DoE) for the calibration of the triaxial accelerometers embedded in a wearable micro Inertial Measurement Unit (μ-IMU). Firstly, a new linearization strategy is proposed for the accelerometer model associated with the so-called autocalibration scheme. Then, an effective Icosahedron design is developed, which can achieve both D-optimality and G-optimality for linearized accelerometer model in ideal experimental settings. However, due to various technical limitations, it is often infeasible for the users of wearable sensors to fully implement the proposed experimental scheme. To assess the efficiency of each individual experiment, an index is given in terms of desired experimental characteristic. The proposed experimental scheme has been applied for the autocalibration of a newly developed μ-IMU.
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