Effect of Satellite Attitude Errors on DBF-Based Satellite Communication

摘要

In this paper, the influence of the satellite attitude error on pointing accuracy is discussed on the digital beamforming (DBF) technologies. The development of DBF technologies is based on analog beamforming while combining digital signal processing methods. It can use beamforming to obtain good beam directive property, and can better form beams to improve the angular resolution. Independently controllable multi-beam formation with good low minor lobe performance. Furthermore, multiple beam antenna (MBA) has been deeply studied and widely applied due to its ability to cover a large area of the ground with high gain and can also adjust the beam shape as needed.