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Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS), have been widely utilized and their applications are becoming popular, not only in military or commercial applications, but also for everyday life. Although GPS measurements are the essential information for currently developed land vehicle navigation systems (LVNS),(More)
Although GPS measurements are the essential information for currently developed land vehicle navigation systems (LVNS), the situation when GPS signals are unavailable or unreliable due to signal blockages must be compensated to provide continuous navigation solutions. In order to overcome the unavailability or unreliability problem in satellite based(More)
This thesis describes the research results in the improvement of a new GPS processing approach: precise point positioning (PPP). Currently, PPP is implemented with the so-called Traditional Model based on the un-differenced dual frequency code and carrier phase observations aided by the precise satellite orbit and clock products. Decimetre to centimetre(More)
IL-18 production may enhance immune system defense against KG-1 cells ; NB4 cells, which are associated with good prognosis, do not produce IL-18. In this study, we treated KG-1 cells with IL-18 and used microarray technology to assess subsequent effects on gene expression. In UniGene-array of 7488 human genes, expression of 57 genes, including stress(More)
Many people demand more convenience and smarter service. Due to demand, smart devices have begun to take center stage in terms of portability and functionality in wireless environments, especially mobile communications. To provide secure service, authentication between networks and users' devices is necessary with proper efficiency. In this paper, we(More)
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