Accuracy Improvement of Inertial Measurement Units via Second Order Sliding Mode Observer and Dynamic Inversion

被引：0
|
作者：
Shtessel, Yuri [1 ]
Tournes, Christian [2 ]
Spencer, Allen [2 ]
Montgomery, Laddin [2 ]
机构：
[1] Univ Alabama Huntsville, Huntsville, AL 35899 USA
[2] Aero Thermo Technol, Huntsville, AL USA
来源：
2022 AMERICAN CONTROL CONFERENCE, ACC | 2022年
关键词：
RECONSTRUCTION; ORDER;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Inertial Measurement Unit (IMU) subsystems measure accelerations or attitude rates by observing specific forces applied to a mechanical system and/or torques caused by gyroscopic effects. The IMU dynamics yield a dynamically distorted measurement and accuracy deterioration. In this paper, the IMUs accuracy is improved by reconstructing the true acceleration and the true attitude rate input signals by employing the second order sliding mode observer (2-SMO) operating in concert with dynamic inversion, given in real time distorted measurement and the IMU dynamics. The efficacy of proposed algorithms is validated on a multiple case study for a 3-stage missile interceptor with typical sampling rates of existing IMUs.
引用
收藏
页码：2509 / 2514
页数：6
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