Analysis of the Antenna Pointing Instability of a Satellite in Spin‐Stabilized Injection Mode | Zendy

Kang JaYoung | Zendy; Shin KwangKeun | Zendy

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Analysis of the Antenna Pointing Instability of a Satellite in Spin‐Stabilized Injection Mode

Author(s) -

Kang JaYoung,

Shin KwangKeun

Publication year - 1994

Publication title -

etri journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.295

H-Index - 46

eISSN - 2233-7326

pISSN - 1225-6463

DOI - 10.4218/etrij.94.0194.0023

Subject(s) - antenna (radio) , toroid , physics , beam (structure) , instability , orientation (vector space) , euler angles , nonlinear system , control theory (sociology) , optics , classical mechanics , mechanics , mathematics , engineering , computer science , geometry , telecommunications , plasma , control (management) , quantum mechanics , artificial intelligence

A new mathematical model to predict the beam pointing instability of a nonconservative two‐body satellite system in spinning injection mode has been developed by using Newton‐Euler and projection methods. Since the on‐axis and null axis of the omni antenna with toroidal pattern beam form a right angle, wobbling of the antenna on‐axis is measured by determining the Euler angles which represent the orientation of the satellite's spin axis. Because of the complexity of the system which is a time varying, nonstationary, nonlinear dynamical system, a numerical method is used for the analysis. Computer simulation results present the effects of the mass distribution and internal mass motion on the antenna beam pointing.

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