Flight motion tracking with new configuration of hybrid inertial sensors. Issue 5 (10th January 2020)

• Record Type: Journal Article
• Authors: Wang, Xin; Yan, Jie; Feng, Dongzhu; Fan, Yonghua; Yang, Dongsheng
• Is Part Of: Engineering computations. Volume 37:Issue 5(2020)
• Page Start: 1683
• Page End: 1701
• Publication Date: 2020-01-10
• Subjects: Calibration -- MEMS -- Motion capture -- Inertial sensor -- INS; Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-11-2018-0542
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: This paper aims to describe a novel hybrid inertial measurement unit (IMU) for motion capturing via a new configuration of strategically distributed inertial sensors, and a calibration approach for the accelerometer and gyroscope sensors mounted in a flight vehicle motion tracker built on the inertial navigation system. Design/methodology/approach: The hybrid-IMU is designed with five accelerometers and one auxiliary gyroscope instead of the accelerometer and gyroscope triads in the conventional IMU. Findings: Simulation studies for tracking with both attitude angles and translational movement of a flight vehicle are conducted to illustrate the effectiveness of the proposed method. Originality/value: The cross-quadratic terms of angular velocity are selected to process the direct measurements of angular velocities of body frame and to avoid the integration of angular acceleration vector compared with gyro-free configuration based on only accelerometers. The inertial sensors are selected from the commercial microelectromechanical system devices to realize its low-cost applications.