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This paper focuses on monitoring and diagnosis problems to the antenna system in mobile communication network. Based on network management measurement report (MR) data, traffic statistics, frequency scan data and basic engineering parameters, the fault of antenna system in network could be found through noise filtering algorithm, inter-modulation interference analysis algorithm, correlation algorithm,...
In order to suit new mapping scenarios and to meet non-professional users' reading requirements as well as their cognitive features, through a practical case of ‘the Atlas of Shanghai Second Water Resources Survey’, we explore storytelling-concept-based multiple solutions to thematic atlas information expansion design, which integrated the characteristics of information transmission of web environment...
In a mobile environment, data broadcast paradigm has been recognised as an effective and scalable mechanism to disseminate frequently requested information to a large number of mobile users. This paper presents the design and implementation of a power preserving mobile broadcast system. The broadcast system is designed to serve transitive queries or queries that access related data items belonging...
The switched reluctance motor drive system (SRD) is usually fed by diodes rectifier in high power application. The diodes rectifier will bring some disadvantages such as current harmonics to grid. A new switched reluctance motor drive system fed by voltage PWM rectifier is presented in this paper, and the circuit structure is given. The operating principle of the system is explained in detail. After...
As the classic image segmentation technique, Otsu adaptive thresholding method is widely employed in image processing and computer vision. Two-dimensional Otsu thresholding algorithm was regarded as an effective improvement of the original Otsu method, especially under low SNR condition. However, the tremendous computation cost limited the application of two-dimensional Otsu algorithm in real-time...
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