doi: 10.7763/IJFCC.2015.V4.398
Flatness Error Evaluation of the Satellite Antenna
Tengda Liu
1
,
Chunjie Wang
1,2
,
Bingjie Wang
1
- 1 School of Mechanical Engineering and Automation, Beihang University, Beijing, China
- 2 State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China
Abstract
Synthetic aperture radar (SAR) antenna is suitablefor small satellite platform. It deforms easily in unfolded state bythe affection of the space thermal loads on orbit, which directlyreduces the precision of the antenna. The flatness error is animportant index to evaluate the thermal deformation of antennasurface. In this paper, first a new flatness error evaluationalgorithm of plane in any space placement based on least squaremethod was proposed for accurate assessment of the satelliteantenna thermal deformation degree. Then the finite elementmodel of SAR antenna for thermal deformation analysis wasestablished and the measure points of the SAR antenna’smeasure surface was picked. Finally the antenna plate flatnesserror was calculated based on the new evaluation algorithm andthe result of analysis. The flatness error of the satellite antennaplate quantifies the degree of the satellite antenna deformationand provides the basis for further design optimization of theSAR antenna structure.
Keywords
- Flatness error evaluation
- least square method
- satellite antenna
- thermal deformation analysis
How to Cite
Tengda Liu, Chunjie Wang, and Bingjie Wang, "Flatness Error Evaluation of the Satellite Antenna," International Journal of Future Computer and Communication, vol. 4, no. 4, pp. 262-265, 2015. https://doi.org/ 10.7763/IJFCC.2015.V4.398
Copyright & License
Copyright © 2015 by the authors. 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 (CC BY 4.0).