1 December 2016 Frame synchronization of satellite based on AIS signals
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Proceedings Volume 9902, Fourth International Conference on Wireless and Optical Communications; 990218 (2016) https://doi.org/10.1117/12.2262258
Event: Fourth International Conference on Wireless and Optical Communications, 2016, Beijing, China
Abstract
Frame synchronization play a very important role in coding of AIS. There are much arithmetic like maximum-likelihood, correlation and so on. But most of those cannot achieve good performance with large frequency offset. As satellite-based AIS system exist larger time delay and Doppler frequency offset, this paper propose arithmetic of frame synchronization. It is based on folding auto-correlation, where the top half and second half of training sequence have largest correlation after it is modulated by GMSK. Simulation experiments indicate that this arithmetic has good anti-frequency-offset performance.
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Shexiang Ma, Shexiang Ma, Dawei Zhao, Dawei Zhao, } "Frame synchronization of satellite based on AIS signals", Proc. SPIE 9902, Fourth International Conference on Wireless and Optical Communications, 990218 (1 December 2016); doi: 10.1117/12.2262258; https://doi.org/10.1117/12.2262258
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