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This paper focused on the prediction of the amount of vessels arriving at the inland port. Based on the statistical data, this paper analyzed the process of time series modeling and model test, set up prediction model of the amount of vessels by using time series analysis method, R programming language, and SAS statistical software. The whole process was described in detail based on an example. It...
A compact coupled-fed antenna for multiband wireless communications is developed in this letter. It makes use of an interdigital capacitor for impedance matching at the frequency of 1.28 GHz. To improve its impedance-matching characteristics at 2.7and 5.5-GHz bands, step-impedance transmission lines are implemented into its design. With overall optimization, such an antenna can operate at 1.26-1.3,...
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