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http://dx.doi.org/10.7840/KICS.2011.36B.8.1012

Baseband Receiver Design for Maritime VHF Digital Communications  

Kim, Seung-Geun (한국해양연구원 해양시스템연구부)
Yun, Chang-Ho (한국해양연구원 해양시스템연구부)
Kim, Sea-Moon (한국해양연구원 해양시스템연구부)
Lim, Yong-Kon (한국해양연구원 해양시스템연구부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.8B, 2011 , pp. 1012-1020 More about this Journal
Abstract
In this paper a design of $\pi$/4-DQPSK baseband receiver for the exchange of digital data and e-mail between shore and ship stations and/or among ship stations in the maritime mobile service VHF channels is described. Due to the permitted relatively big frequency instability of local oscillators at the transmitter and the receiver of maritime communication system, the designed baseband receiver should have the capabilities of correct estimation and compensation of the synchronization parameters, such as symbol timing and frequency offset, from the received signal which might include relatively big frequency error. Simulated BER results show that the designed baseband receiver works less than 0.5dB loss under AWGN channel when the normalized frequency offset of the received signal is more then 20%.
Keywords
Maritime VHF Digital Communications; Baseband Receiver Design; Synchronization; ITU-RM.1842; ${\pi}$/4-DQPSK;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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