【摘 要】
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Simulation analysis and modeling study of ground pointing and cover-age characteristics of multi-beam antenna were presented for GEO communication satellite with small inclined angle which has the cha
【机 构】
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Institute of Navigation and Aerospace Engineering, Information Engineering University, Zhengzhou 450
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Simulation analysis and modeling study of ground pointing and cover-age characteristics of multi-beam antenna were presented for GEO communication satellite with small inclined angle which has the characteristics of short cycle,great visual range and better flexibility.Firstly,satellite positions were calculated based on the experiment of simulation of dynamics and orbital evolution.Second-ly,the computational model of dynamic pointing of antenna based on offset control of attitude was obtained by analyzing these problems about the low-inclination orbit,the controlling of inclined orbit and dynamic pointing of beam.Then the coverage rates were computed for different calibration station and pointing deviation angle,respectively.The results show that the coverage rate of master control station was 100% based on designed beam pointing when the orbit inclination equal 5.5 degrees.However,under the same conditions,the coverage rate of auxiliary control station cant achieve 100% when azimuth angle and elevation angle all are 0.4 degrees.Finally,the process of verification about partial simulation was achieved by developing corresponding scenarios using STK,and it is proved that the research carried out in this paper is reliable.
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