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in this research, we propose a cost effective way to improve SOHO network performance by deploying web caching through virtual server, extensive experiments have been designed and conducted on real networks to measure the performance improvement, followed by quantitative analysis. We have found that certain applications are rendered useless due to large delay and low bandwidth environments. However,...
In this paper, we studied fault detection problem for a class of linear networked control systems (NCSs) with time delays and packet losses. A T-S fuzzy model is employed to represent a NCSs with time delays and packet losses. Attention is focused on the design of fault diction observer. Using linear matrix inequalities (LMIs) and Lyapunov function technology, sufficient conditions for existence of...
According to the characteristic of GPS direct signal and reflection signal, unmanned aerial vehicle's altitude transducer and GPS navigation equipment are integrated to a miniature detention mapping receiver system. The GPS terrain echo signal mathematics equation has been inferred, the height measuring model which reflects the land surface characteristic has been established. Thus the GPS satellite...
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