[1]ZOU Renqiu,ZHANG Jiayou,SONG Xiangshuai,et al.Influence of spacecraft flexibility on imaging area in space remote sensing[J].CAAI Transactions on Intelligent Systems,2023,18(3):489-495.[doi:10.11992/tis.202203043]
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Influence of spacecraft flexibility on imaging area in space remote sensing

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 18 Number of periods: 2023 3 Page number: 489-495 Column: 学术论文—机器感知与模式识别 Public date: 2023-07-05
Title:
Influence of spacecraft flexibility on imaging area in space remote sensing
Author(s):
ZOU Renqiu1;  ZHANG Jiayou2;  SONG Xiangshuai2;  XIE Yaen2;  WU Xiande2
1. Beijing Institute of Space Long March Vehicle, Beijing 100076;
2. College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
Keywords:
remote sensing satellite; imaging observation; flexible appendix; finite element method; Lagrange method; agile satellite; imaging region; satellite earth geometry
CLC:
TP73
DOI:
10.11992/tis.202203043
Abstract:
Aiming at the earth imaging observation of remote sensing agile satellite maneuvering mode, the influence of flexible accessory vibration on satellite imaging area and quality is analyzed in this paper. Firstly, the dynamics model of satellite with flexible appendage is established by using finite element method and Lagrange method; Then, the imaging strip is calculated by satellite earth geometry method; Finally, the numerical simulation results are derived by selecting the sun-synchronous orbit and geostationary orbit as examples, and using two symmetrical solar panels as flexible accessories. The simulation results show that after the satellite maneuver is completed, the deviation between the roll direction and the pitch direction of the imaging area is large, resulting in dislocation of the imaging area; The influence of solar panel vibration on the imaging area decreases with the weakening of its vibration, and tends to stability gradually. The higher the altitude of satellite orbit, the greater the impact of disturbance on the satellite imaging area, which takes longer time to stabilize the attitude.
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