Experimental Evaluation of Maritime Position Communication System Using Low Power Radio Synchronized by PPS Signal of a GPS Receiver

M. Yoshida, H. Hojo, C. Fan, A. Yasuda

Abstract:	The authors proposed DS-SS communication system with an Extremely Low Power radio that used the 1PPS signal of the GPS receiver for the code synchronization of the marine location information system. They are trying to develop a portable positioning information system for the rescue of victims of capsizing boats, drifting divers and so on. The system was built, using a GPS receiver, FPGA for the signal processing, and an Extremely Low Power radio module. The one second data frame, triggered by a PPS signal every second, is comprised of spread data with a phase detection sequence at the beginning. First, the sending point was fixed and the reception power, BER and detection probability was measured. At 80m, a BER of better than 10-3 was obtained. Next, it was measured the transmitter was on a small boat. The results proved that the proposed system is effective, although the values were degraded compared to the case of a fixed transmitter. Also, the authors estimated the performance of a system which regenerates a carrier synchronized by the PPS signal from a GPS receiver.
Published in:	Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006) September 26 - 29, 2006 Fort Worth Convention Center Fort Worth, TX
Pages:	1965 - 1972
Cite this article:	Yoshida, M., Hojo, H., Fan, C., Yasuda, A., "Experimental Evaluation of Maritime Position Communication System Using Low Power Radio Synchronized by PPS Signal of a GPS Receiver," Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, September 2006, pp. 1965-1972.
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