Accuracy Analysis of Attitude Computation Based on Optimal Coning Algorithm

  • Xiyuan Chen Southeast University, Jiangsu
  • Jianfeng Chen Jiangsu University, Jiangsu
  • Xuefen Zhu Southeast University, Jiangsu
  • Jianli Li Beijing University of Aeronautics and Astronautics, Beijing
Keywords: Accuracy analysis, attitude computation, periodic components, optimal coning algorithms


To accurately evaluate the applicability of optimal coning algorithms, the direct influence of their periodic components on attitude accuracy is investigated. The true value of the change of the rotation vector is derived from the classical coning motion for analytic comparison. The analytic results show that the influence of periodic components is mostly dominant in two types of optimal coning algorithms. Considering that the errors of periodic components cannot be simply neglected, these algorithms are categorized with simplified forms. A variety of simulations are done under the classical coning motion. The numerical results are in good agreement with the analytic deductions. Considering their attitude accuracy, optimal coning algorithms of the 4-subinterval and 5-subinterval algorithms optimized with angular increments are not recommended for use for real application.

Defence Science Journal, 2012, 62(6), pp.361-368, DOI:

Author Biographies

Xiyuan Chen, Southeast University, Jiangsu
Dr Xiyuan Chen received his PhD from Southeast University in 1998. He is a Professor of the School of Instrument Science and Engineering at Southeast University. His research areas include GPS software receiver, inertial navigation, wireless location technology, weak-signal GNSS, integrated navigation and related application.
Jianfeng Chen, Jiangsu University, Jiangsu
Mr Jianfeng Chen received his Master’s degree from Jiangsu University in 2005. He is now a PhD student at Southeast University. He is also a Lecturer with Jiangsu University. His current research interests include inertial navigation and SININS/GNSS integrated measurement.
Xuefen Zhu, Southeast University, Jiangsu
Dr Xuefen Zhu received her PhD from Southeast University in 2010, and is currently working at Southeast University as Lecturer. Her research focuses on GPS/Galileo software receivers and integrated navigation.
Jianli Li, Beijing University of Aeronautics and Astronautics, Beijing
Dr Jianli Li received his PhD (precision instrument and machine) from Beijing University of Aeronautics and Astronautics, China in 2008. After that, he worked as an instructor in Beijing University of Aeronautics and Astronautics. His research activities include : High precision strapdown inertial navigation system/ global positioning system integrated measurement system.
How to Cite
Chen, X., Chen, J., Zhu, X., & Li, J. (2012). Accuracy Analysis of Attitude Computation Based on Optimal Coning Algorithm. Defence Science Journal, 62(6), 361-368.
Aeronautical Systems