Personal Inertial Navigation System Employing MEMS Wearable Ground Reaction Sensor Array and Interface ASIC Achieving a Position Accuracy of 5.5m Over 3km Walking Distance Without GPS

📋 论文概要

该论文提出了一种基于MEMS可穿戴地面反作用力传感器阵列和接口ASIC的个人惯性导航系统，旨在解决GPS缺失环境下的高精度位置追踪问题。通过传感器阵列和专用ASIC，系统实现了更准确的位移和方向估计。

💡 主要创新点

• 采用MEMS地面反作用力传感器阵列替代传统IMU，提高步态检测和位移计算精度。
• 设计专用接口ASIC，实现传感器信号的低噪声、低功耗采集与处理。
• 结合惯性测量与地面反作用力信息，增强系统在复杂环境下的鲁棒性。

🏷 关键词

📄 原文摘要

Cleveland, OH 1 2 An accurate personal inertial navigation system under GPS-denied environment is highly critical for demanding applications such as firefighting, rescue missions, and military operations. Location-aware computation for large-area mixed reality also calls for accurate personal position tracking. Position calculation can be accomplished by using an inertial measurement unit (IMU) composed of a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer. A gyroscope and magnetometer together can provide the orientation information, while the displacement can be obtained by integrating the acceleration data over time. A MEMS-based IMU is attractive for its small size, low power and low cost.

👥 作者与机构

Qingbo Guo1, William Deng2, Ozkan Bebek3, Cenk Cavusoglu4,

Carlos Mastrangelo1, Darrin Young1 University of Utah, Salt Lake City, UT University of California, Berkeley, CA 3 Ozyegin University, Istanbul, Turkey 4 Case Western Reserve University,