Systems Engineering and Electronics
Haosu Zhou and Jianxin Wang
The satellite-based automatic identification system (AIS) receiver has to encounter the frequency offset caused by the Doppler effect and the oscillator instability. This paper proposes a non-coherent sequence detection scheme for the satellite-based AIS signal transmitted over the white Gaussian noise channel. Based on the maximum likelihood estimation and a Viterbi decoder, the proposed scheme is capable of tolerating a frequency offset up to 5% of the symbol rate. The complexity of the proposed scheme is reduced by the state-complexity reduction, which is based on per-survivor processing. Simulation results prove that the proposed non-coherent sequence detection scheme has high robustness to frequency offset compared to the relative scheme when messages collision exists.
Haosu Zhou and Jianxin Wang. Non-coherent sequence detection scheme for satellite-based automatic identification system[J]. Systems Engineering and Electronics, doi: 10.21629/JSEE.2017.03.04.
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks