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A simple and effective method for evaluating the parameters of specific attenuation model induced by rain is presented. The parameters at the frequencies from 20GHz to 50GHz are given using the specific attenuation calculated by equivalent permittivity model under the measured raindrop size distribution and the method presented in this paper, which are more applicable in Xi'an, China. The parameters...
This paper presents a method for designing semi-supervised classifier trained on labeled and unlabeled instances. We explore the trade-off between maximizing a discriminative likelihood of labeled data and a generative likelihood of labeled and unlabeled data. Moreover, mixture models are an interesting and flexible model family. The different uses of mixture models include for example generative...
Focus on in-depth studying and implementing of the topology auto discovery in topology management module. In introducing the network topology discovery technology, analysis in detail the two link layer topology discovery method and network layer topology auto discovery method. After in depth study and analysis various algorithms, adopt the algorithm based SNMP for network layer topology discovery,...
This paper discuses the application of wavelet analysis and invariant movements on automatic vehicle recognition. The wavelet analysis was used to get multi-scale edge images, and the invariant moments were used to anti-tilt and anti-interference, and to correct the vehicles of the images. Then we can compare similarity through the Euclidean distance between two images' normalized moment vectors....
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