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Communication Dans Un Congrès Année : 2014

Partial CRC-assisted error correction of AIS signals received by satellite

Résumé

This paper deals with the demodulation of automatic identification system (AIS) signals received by a satellite. More precisely, an error correction algorithm is presented, whose computational complexity is reduced with respect to that of a previously considered approach. This latter approach makes use of the cyclic redundancy check (CRC) of a message as redundancy, in order to correct transmission errors. In this paper, the CRC is also considered as a correction tool, but only a part of it is used for that purpose; the remaining part is only used as an error detection means. This novel approach allows the decoding performance to be adapted to the noise power, and provides a reduction of the computational complexity. Simulation results obtained with and without complexity optimization are presented and compared in the context of the AIS system.
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Dates et versions

hal-04080894 , version 1 (25-04-2023)

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Citer

Raoul Prévost, Martial Coulon, David Bonacci, Julia Lemaitre, Jean-Pierre Millerioux, et al.. Partial CRC-assisted error correction of AIS signals received by satellite. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), IEEE, May 2014, Florence, Italy. pp.1951-1955, ⟨10.1109/ICASSP.2014.6853939⟩. ⟨hal-04080894⟩
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