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Based on the WINNER-CDL channel model, the space-time-frequency characteristics of the 3D MIMO channels are studied and simulated in this paper. The closed from expressions of the space-time correlation and frequency correlation of the 3D MIMO channel as the function of the physical parameters are firstly derived and analyzed mathematically. Then deep simulations are conducted to evaluate and compare...
Industrial structure has great influence on the development of economic in an area. Variable for the industrial structure is characterized by multiple factors, by using the way of gray correlation degree, the paper analyzes the relationship between industrial structure and economic growth which according to the relative statistic data from 1994 to 2008 in Henan Province. The results show that both...
In this paper, an analytic hierarchy process (AHP) approach is described and applied to a fuzzy synthetic evaluation on environmental competitiveness of textile enterprises. Results of the AHP show that environmental competitiveness of textile enterprises in Hebei province concerned in this paper is within the ldquopromisingrdquo range. In addition, three factors, ability of research and development...
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