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智能天线和空间分集接收技术 被引量:7
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作者 黄开枝 陈国安 +1 位作者 王京 王有政 《电讯技术》 北大核心 2002年第4期99-104,共6页
智能天线和空间分集接收技术是主要的两种空间信号处理技术。本文从传播路径的无线传输特性、空时信道模型以及不同环境的多径特性出发 ,分析了CDMA系统存在的主要问题以及智能天线和空间分集接收技术的工作原理 ,着重比较了这两种技术... 智能天线和空间分集接收技术是主要的两种空间信号处理技术。本文从传播路径的无线传输特性、空时信道模型以及不同环境的多径特性出发 ,分析了CDMA系统存在的主要问题以及智能天线和空间分集接收技术的工作原理 ,着重比较了这两种技术的区别以及应用场合。 展开更多
关键词 智能天线 移动通信 空间信号处理 空间分集接收技术 空时处理技术
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THE TR-UWB RECEIVER BASED ON SPATIAL DIVERSITY
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作者 Wang Feng Xu Chengqi Zhang Yan 《Journal of Electronics(China)》 2009年第5期623-630,共8页
This paper presents a new Transmitted Reference (TR) Ultra-WideBand (UWB) receiver based on Spatial Diversity (SD), which employs Multi-Antenna Technology (MAT) to improve the performance of TR-UWB receiver. According... This paper presents a new Transmitted Reference (TR) Ultra-WideBand (UWB) receiver based on Spatial Diversity (SD), which employs Multi-Antenna Technology (MAT) to improve the performance of TR-UWB receiver. According to the amplitude of correlator output of every antenna branch, this paper analyzed the performances of the proposed TR-UWB receiver employing three different kinds of combination strategies, i.e., Maximum Ratio Combination (MRC), Equal Gain Combination (EGC), and Selective Combination (SC), which are different from conventional ones, and theoretically proved that the performance of EGC is better than MRC. Simulation results verify that when EGC is adopted and BER=10-3, increasing three antennas provides Signal to Noise Ratio (SNR) gain of about 3 dB in CM4 channel and SNR gain of about 2 dB in CM2 channel. 展开更多
关键词 Ultra-WideBand (UWB) Transmitted Reference (TR) Spatial Diversity (SD) Multiple Antenna Technology (MAT) Bit Error Rate (BER)
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