Paper Title:
Research of Roll-Isolated Gimbal Platform and a Two-Position Initial Alignment Scheme of SINS in Spinning Projectile
  Abstract

It is difficult to apply a traditional strapdown inertial navigation system(SINS) to spinning projectile because of high spin rate. A Roll-Isolated gimbal platform is introduced to prevent SINS by the projectile’s spinning motion. Roll-Isolation is accomplished by supporting the inertial measurement unit(IMU) on a single gimbal, the axis of which is parallel to the projectile’s spinning axis. Roll-Isolation prevents the saturation of the roll gyro by the high vehicle spin rate and greatly reduces the measurement errors arising from gyro scale factor and misalignment. On the basis of roll-isolation, the paper presents a Two-Position initial alignment scheme of SINS on stationary base, which is realized by changing the IMU roll angle around the spinning axis. Furthermore, the paper studies on the observability of the scheme, and the results show that it not only improves observability but also minimizes alignment errors.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 17: Manufacturing Process Planning and Scheduling
Edited by
Wu Fan
Pages
4115-4120
DOI
10.4028/www.scientific.net/AMR.383-390.4115
Citation
Y. S. Shi, B. Wang, M. J. Dong, Z. F. Gao, "Research of Roll-Isolated Gimbal Platform and a Two-Position Initial Alignment Scheme of SINS in Spinning Projectile", Advanced Materials Research, Vols. 383-390, pp. 4115-4120, 2012
Online since
November 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Li Li, Jian Cheng Fang, Mai Ying Zhong, Bai Qi Liu
Chapter 3: Advanced Test and Measurement
Abstract:The gyro drift is a crucial factor for initial orientation error and measurement error of SIMS (Strapdown Inertial Measurement System)....
696
Authors: Zhi Jian Ding, Hong Cai, Hua Bo Yang, Yuan Cao
Chapter 3: Mechatronics and Robot Technology
Abstract:Abstract: Aiming at transfer alignment of gimbaled INS(Inertial Navigation Systems) on moving base, the paper proposes an attitude matching...
768
Authors: Jie Li, Yong Li, Qiao Jiang, Jun Liu
Chapter 7: Industrial Equipment and Engineering
Abstract:In view of the problem that the sensor accuracy of low-cost SINS is very low and the system is difficult to achieve autonomous initial...
680