Research Article
Effective Doppler Mitigation in Critical Satellite Communications
@INPROCEEDINGS{10.1007/978-3-319-53850-1_15, author={Alessio Fanfani and Simone Morosi and Luca Ronga and Enrico Del Re}, title={Effective Doppler Mitigation in Critical Satellite Communications}, proceedings={Wireless and Satellite Systems. 8th International Conference, WiSATS 2016, Cardiff, UK, September 19-20, 2016, Proceedings}, proceedings_a={WISATS}, year={2017}, month={6}, keywords={}, doi={10.1007/978-3-319-53850-1_15} }- Alessio Fanfani
Simone Morosi
Luca Ronga
Enrico Del Re
Year: 2017
Effective Doppler Mitigation in Critical Satellite Communications
WISATS
Springer
DOI: 10.1007/978-3-319-53850-1_15
Abstract
The modems for telemetry and telecommand applications are a key component in each satellite system: they shall guarantee reliable and effective performance during every mission phases including also critical scenarios such as the control operation of the satellite while it is placed into its orbit, the disposal of a satellite at the end of its life or the deep-space missions. In these scenarios, the link could be unstable and with a rapid variability and the communication become bursty and be characterized by poor performance. This paper introduces an all-digital implementation of a receiver, which is based on the Differential PSK (D-PSK) modulation and an enhanced version of the Digital Delay and Multiplier frequency estimator and compensator for mitigating the Doppler effect, and that results to be perfectly compliant with the aforementioned requirements. The performance of the proposed receiver is extensively studied and compared with an incoherent technique which is based on the Double Differential PSK (DD-PSK) modulation and is known to be suitable for sat-com in critical scenarios.
