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作 者:席维杰
出 处:《激光杂志》2017年第9期167-170,共4页Laser Journal
摘 要:宿舍作为校园生活的重要场所,随着校园无线网的普及,超宽带(UWB)技术越来越多的运用于宿舍内无线通信中。本文依据UWB信道建模的经典模型,Saleh-Valenzuela模型,在分析模型基本特性的基础之上,对其进行合理修正,使得模型更符合校园宿舍内环境的特点。并加入对数阴影来反映无线信道的长期衰落。最后采用Matlab对改进后的模型进行仿真,找出改进之后的宿舍UWB信道的优点。同时通过仿真,也发现改进之后的模型仍有缺点需要进一步改进,根据其缺点的特征,提出相应的改进方向。Dormitory as an important place for campus life, with the popularity of campus wireless network, Ultra -wideband (UWB) technology is increasingly used in dormitory wireless communication. According to the classic model of UWB channel modeling, the Saleh-Valenzuela model. On the basis of analyzing the basic characteristics of the model, it is reasonably modified to make the model more in line with the characteristics of the environment in the campus dormitory. And add logarithmic shadows to reflect the long-term fading of the wireless channel. Finally, we use Matlab to simulate the improved model to find out the advantages of the improved UWB channel. At the same time, through the simulation, it is found that the improved model still needs to be further improved, and according to the characteristics of its shortcomings, the corresponding improvement direction is put forward.
分 类 号:TN911[电子电信—通信与信息系统]
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