Research on non-gyro projectile's attitude measurement based on improved unscented Kalman filter

Zhaohua Liu*, Jiabin Chen, Yong Wang, Chunlei Song, Jun Wang, Wei Feng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Considering the control requirements of guided projectile, a novel method is studied that using three low-cost MEMS accelerometers as inertial measurement unit to construct state equation and measurement equation of system, using improved unscented Kalman filter (IUKF) to estimate the state of system. For the system characteristic of linear state equation and nonlinear measurement equation, the improved UKF nonlinear filter algorithm which combines KF and UKF was proposed. At the same time, utilizing minimal skew simplex sampling to reduce the number of sigma points, computational efficiency is enhanced. The simulation experimental results show that using IUKF algorithm can obtains good precision of estimation.

Original languageEnglish
Title of host publicationMaterials Engineering for Advanced Technologies
PublisherTrans Tech Publications Ltd.
Pages1111-1116
Number of pages6
ISBN (Print)9783037851319
DOIs
Publication statusPublished - 2011

Publication series

NameKey Engineering Materials
Volume480-481
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Attitude measurement
  • Non-gyro
  • Nonlinear
  • Reduced sigma point
  • Unscented Kalman filter

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