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走廊环境极化信道大尺度特性测量与建模
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作者 胡留军 张继良 +2 位作者 汪洋 丁丽琴 陈诗军 《桂林电子科技大学学报》 2015年第5期361-365,共5页
为了建立室内走廊环境2.4-2.5GHz极化大尺度衰落模型,采用矢量网络分析仪搭建无线信道测量平台,并利用该平台在典型教学楼走廊环境下测量信道。通过测量数据提取信道的损耗系数、交叉极化隔离、阴影衰落方差、频率补偿系数等大尺度特性... 为了建立室内走廊环境2.4-2.5GHz极化大尺度衰落模型,采用矢量网络分析仪搭建无线信道测量平台,并利用该平台在典型教学楼走廊环境下测量信道。通过测量数据提取信道的损耗系数、交叉极化隔离、阴影衰落方差、频率补偿系数等大尺度特性参数,建立该环境极化信道的大尺度衰落模型。测量结果表明,在2.4-2.5GHz频带,频率对大尺度衰落的影响可忽略不计。 展开更多
关键词 走廊信道 极化信道建模 极化信道测量 大尺度衰落
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A Study on The Multi-Antenna Geometrical Depolarization Channel Modeling 被引量:2
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作者 SUN Xuehong YANG Xiaoli +2 位作者 ZENG Zhimin ZHANG Cheng BAI Bing 《China Communications》 SCIE CSCD 2016年第3期105-114,共10页
The traditional geometrical depolarization model that single transmitter to single receiver provides a simple method of polarization channel modeling. It can obtain the geometrical depolarization effect of each path i... The traditional geometrical depolarization model that single transmitter to single receiver provides a simple method of polarization channel modeling. It can obtain the geometrical depolarization effect of each path if known the antenna configuration, the polarization field radiation pattern and the spatial distribution of scatters. With the development of communication technology, information transmission spectrum is more and more scarce. The original model provides only a single channel polarization state, so the information will be limited that the polarization state carries in the polarization modulation. The research is so significance that how to carries polarization modulation information by using multi-antenna polarization state. However, the present study shows that have no depolarization effect model for multi-antenna systems. In this paper, we propose a multi-antenna geometrical depolarization model. On the basis of a single antenna to calculate the depolarization effect of the model, and through simulation to analysis the main factors that influence the depolarization effect. This article provides a multi-antenna geometrical depolarization channel modeling that can applied to large-scale array antenna, and to some extent increase the speed of information transmission. 展开更多
关键词 large-scale array antenna multi-antenna channel modeling depolarization effect cross polarization discrimination
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