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Mathematical Problems in Engineering
Volume 2018, Article ID 3420649, 12 pages
https://doi.org/10.1155/2018/3420649
Research Article

A Two-Dimensional Solar Tracking Stationary Guidance Method Based on Feature-Based Time Series

1Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
2University of Chinese Academy of Sciences, Beijing 100049, China
3Innovative Academy for Microsatellites, Chinese Academy of Sciences, Shanghai 201203, China
4School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China

Correspondence should be addressed to Keke Zhang; moc.mot@89orezkkz

Received 19 December 2017; Accepted 15 March 2018; Published 24 April 2018

Academic Editor: David Bigaud

Copyright © 2018 Keke Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The amount of satellite energy acquired has a direct impact on operational capacities of the satellite. As for practical high functional density microsatellites, solar tracking guidance design of solar panels plays an extremely important role. Targeted at stationary tracking problems incurred in a new system that utilizes panels mounted in the two-dimensional turntable to acquire energies to the greatest extent, a two-dimensional solar tracking stationary guidance method based on feature-based time series was proposed under the constraint of limited satellite attitude coupling control capability. By analyzing solar vector variation characteristics within an orbit period and solar vector changes within the whole life cycle, such a method could be adopted to establish a two-dimensional solar tracking guidance model based on the feature-based time series to realize automatic switching of feature-based time series and stationary guidance under the circumstance of different angles and the maximum angular velocity control, which was applicable to near-earth orbits of all orbital inclination. It was employed to design a two-dimensional solar tracking stationary guidance system, and a mathematical simulation for guidance performance was carried out in diverse conditions under the background of in-orbit application. The simulation results show that the solar tracking accuracy of two-dimensional stationary guidance reaches 10 and below under the integrated constraints, which meet engineering application requirements.