| Autor: |
Tronc, J., Angeletti, P., Song, N., Haardt, M., Arendt, J., Gallinaro, G. |
| Přispěvatelé: |
Publica |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Popis: |
The objective of this paper is to review state-of-the-art techniques of beamforming in mobile satellite systems and evaluate the potential benefits/drawbacks of on-ground beamforming compared with on-board beamforming approach. The paper also provides a short analysis of beamforming error sources in on-ground beamforming such as propagation effects at feeder link level, on-board degradations at payload level, differential atmospheric perturbations, and Doppler shift effect. An investigation of signal processing techniques is also performed to provide a preliminary assessment of the interest for employing adaptive beamforming and precoding techniques in multi-spots mobile satellite systems. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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