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Vehicular technologies have been recently introduced to highway safety applications and caught much attention of governments and management authorities. The vehicular ad hoc network (VANET) uses cars as mobile nodes to form a mobile network. VANET offers potential and promising technical solutions to vehicular safety. Multi-hop broadcasting schemes are particularly preferred methods to transmit time-sensitive...
Background error covariance (B) plays an important role in any meteorological variational data assimilation system, which determines how information of observations is spread in model space. In this paper, based on the WRF model and it's 3D-Var system, an algorithm using orthogonal wavelet to model B-matrix is developed. Because each wavelet function contains both information on position and scale,...
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