Mode-Scheduling Steering Law of VSCMGs for Multi-Target Pointing and Agile Maneuver of a Spacecraft
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2017, Vol 8, Issue 5
Abstract
This study proposes a method of selecting a set of gimbal angles in the final state and applies the method to the mode-scheduling steering law of variable-speed control moment gyros intended for multi-target pointing manoeuvres in the three-axis attitude control of a spacecraft. The proposed method selects reference final gimbal angles, considering the condition numbers of the Jacobian matrix of the reaction wheel mode in the final state of a single manoeuvre and that of the constant-speed control moment gyro mode at the start of the upcoming manoeuvre to keep away from the singularities. To improve the reachability of reference final gimbal angles, the nearest set of gimbal angles among nominated sets according to the Euclidean norm is selected as the reference final set at the middle of the single manoeuvre, and then realised by adopting gimbal angle feedback steering logic using null motion. In addition, the manoeuvre profile is designed such that the second half of the single manoeuvre is more gradual and takes longer than the first. Numerical simulation confirms the validity of the proposed method in consecutive manoeuvres.
Authors and Affiliations
Yasuyuki Nanamori, Masaki Takahashi
Keywords
Related Articles
- EP ID EP258595
- DOI 10.14569/IJACSA.2017.080504
- Views 79
- Downloads 0
Local and Semi-Global Feature-Correlative Techniques for Face ?Recognition
Face recognition is an interesting field of computer vision with many commercial and ?scientific applications. It is considered as a very hot topic and challenging problem at the ?moment. Many methods and techniques have...
Educational Game Application Development on Classification of Diseases and Related Health Problems Treatment in Android Platform
The classification and codification of diseases and related problems is one of the competences of medical recorder as stated in Kepmenkes RI.377 in 2007. The current problem is the lack of reference exercise in learning...
Environments and System Types of Virtual Reality Technology in STEM: a Survey
Virtual Reality (VR) technology has been used widely today in Science, Technology, Engineering and Mathematics (STEM) fields. The VR is emerging computer interface distinguished by high degrees of immersion, trustworthy,...
Toward Secure Web Application Design: Comparative Analysis of Major Languages and Framework Choices
We will examine the benefits and drawbacks in the selection of various software development languages and web application frameworks. In particular, we will consider five of the ten threats outlined in the Open Web Appli...
The Phenomenon of Enterprise Systems in Higher Education:Insights From Users
Higher education has been strongly influenced by global trends to adopt new technologies. There has been a call by governments for universities worldwide to improve their performance and efficiency. In response, higher e...