Open Access
ARTICLE
Improvement of Orbit Prediction Algorithm for Spacecraft Through Simplified Precession-Nutation Model Using Cubic Spline Interpolation Method
Gen Xu, Danhe Chen, Xiang Zhang, Wenhe Liao*
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210097, China
* Corresponding Author: Wenhe Liao. Email:
(This article belongs to this Special Issue: Modeling and Analysis of Autonomous Intelligence)
Computer Modeling in Engineering & Sciences 2020, 125(2), 865-878. https://doi.org/10.32604/cmes.2020.012844
Received 14 July 2020; Accepted 25 August 2020; Issue published 12 October 2020
Abstract
For the on-orbit flight missions, the model of orbit prediction
is critical for the tasks with high accuracy requirement and limited computing resources of spacecraft. The precession-nutation model, as the main
part of extended orbit prediction, affects the efficiency and accuracy of
on-board operation. In this paper, the previous research about the conversion between the Geocentric Celestial Reference System and International
Terrestrial Reference System is briefly summarized, and a practical concise
precession-nutation model is proposed for coordinate transformation computation based on Celestial Intermediate Pole (CIP). The idea that simplifying
the CIP-based model with interpolation method is driven by characteristics of precession-nutation parameters changing with time. A cubic spline
interpolation algorithm is applied to obtain the required CIP coordinates
and Celestial Intermediate Origin locator. The complete precession nutation
model containing more than 4000 parameters is simplified to the calculation of a cubic polynomial, which greatly reduces the computational load.
In addition, for evaluating the actual performance, an orbit propagator is
built with the proposed simplified precession-nutation model. Compared with
the orbit prediction results obtained by the truncated series of IAU2000/2006
precession-nutation model, the simplified precession-nutation model with
cubic spline interpolation can significantly improve the accuracy of orbit prediction, which implicates great practical application value in further on-orbit
missions of spacecraft.
Keywords
Cite This Article
Xu, G., Chen, D., Zhang, X., Liao, W. (2020). Improvement of Orbit Prediction Algorithm for Spacecraft Through Simplified Precession-Nutation Model Using Cubic Spline Interpolation Method.
CMES-Computer Modeling in Engineering & Sciences, 125(2), 865–878.
Citations