A GPS-slaved time synchronization system for hybrid navigation |
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| Authors: | Binghao Li Chris Rizos Hyung Keun Lee Hung Kyu Lee |
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| Affiliation: | (1) School of Surveying and Spatial Information Systems, The University of New South Wales, 2052 Sydney, NSW, Australia;(2) School of Avionics and Telecommunication, Hankuk Aviation University, Hwajon-dong, Deokyang-gu, Goyang-city, Kyunggi-do, South Korea;(3) Department of Civil Engineering, Changwon National University Sarim-dong, Changwon, Kyongnam, South Korea |
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| Abstract: | For multisensor integration, a primary prerequisite is time synchronization. Methods that have been used in many operational systems are either too expensive, or have inconvenient features, that make them inappropriate for research purposes. In this paper, the system design of a cost effective synchronization system (CESS) is described. Tests show that a synchronization accuracy of 0.4 ms can be achieved using this system. A land trial of GPS/INS integration verified that the CESS is accurate enough for most low-cost sensor integration applications. However, a more accurate synchronization can be achieved by minor modifications to the CESS. This system provides an ideal platform for researchers to build their own integrated multisensor systems. |
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