دورية أكاديمية
أعرض في EDS

Autonomous Pointing Control of a Large Satellite Antenna Subject to Parametric Uncertainty

التفاصيل البيبلوغرافية
العنوان: Autonomous Pointing Control of a Large Satellite Antenna Subject to Parametric Uncertainty
المؤلفون: Shunan Wu, Yufei Liu, Gianmarco Radice, Shujun Tan
المصدر: Sensors, Vol 17, Iss 3, p 560 (2017)
بيانات النشر: MDPI AG, 2017.
سنة النشر: 2017
المجموعة: LCC:Chemical technology
مصطلحات موضوعية: attitude control, satellite, autonomous control, adaptive, antenna pointing, Chemical technology, TP1-1185
الوصف: With the development of satellite mobile communications, large antennas are now widely used. The precise pointing of the antenna’s optical axis is essential for many space missions. This paper addresses the challenging problem of high-precision autonomous pointing control of a large satellite antenna. The pointing dynamics are firstly proposed. The proportional–derivative feedback and structural filter to perform pointing maneuvers and suppress antenna vibrations are then presented. An adaptive controller to estimate actual system frequencies in the presence of modal parameters uncertainty is proposed. In order to reduce periodic errors, the modified controllers, which include the proposed adaptive controller and an active disturbance rejection filter, are then developed. The system stability and robustness are analyzed and discussed in the frequency domain. Numerical results are finally provided, and the results have demonstrated that the proposed controllers have good autonomy and robustness.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1424-8220
17030560
Relation: http://www.mdpi.com/1424-8220/17/3/560; https://doaj.org/toc/1424-8220
DOI: 10.3390/s17030560
URL الوصول: https://doaj.org/article/e7aa597f263c4ac1b713162f25cfefe0
رقم الأكسشن: edsdoj.7aa597f263c4ac1b713162f25cfefe0
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14248220
17030560
DOI:10.3390/s17030560