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从结构、工作原理、技术参数及性能特点等方面对TSG15型受电弓与DSA200型受电弓进行对比分析后.对TSG15型受电弓的部分零部件进行结构优化,改进设计后的受电弓可满足HXD3B型机车的使用要求. 相似文献
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Introduction The scarcity of available radio spectrum limits theextension of the modern wireless communication. Oneapproach to alleviate this limitation is the dynamicspectrum allocation (DSA) at network level, which isable to adapt to the spatial and temporal variation intraffic load[1]. The concept of DSA was first presentedin the DARPA (Defense Advanced Research ProjectsAgency) XG Program[2], with the aim to increase thespectral efficiency by spectrum sharing among radios.Due to the… 相似文献
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