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频率选择性衰落MIMO信道的GBDB模型及其性能分析 被引量：1

GBDB Model for frequency-selective fading MIMO channels and its Performance Analysis
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摘要 针对频率选择性MIMO信道建立GBDB模型。综合考虑了无线衰落信道收发两端的多普勒扩展、非均匀角度扩展以及平均发射与到达方向,综合考虑了收发端天线阵的配置,推导出频率选择性MIMO信道的联合空时频相关函数,给出该模型的时延扩展的概率密度函数、时延谱与角度谱,并且与实测数据进行对比分析,验证了该模型的准确性。 Aiming at mobile frequency selective fading MIMO channels, this paper proposes the GBDB （Geometrically Based Double-Bounce） channels model, the new space-time correlation function takes account of all parameters of MIMO system such as the Doppler spread, the nonuniform angle spread, and antenna array configuration. Based on the proposed model. The pdf of delay, PDS and PAS are gived. The accuracy of model is verified by comparing the theoretical curves of PDS and PAS with measured curves.
作者 高凯 张尔扬
机构地区 国防科技大学电子科学与工程学院
出处 《信号处理》 CSCD 北大核心 2007年第5期763-767,共5页 Journal of Signal Processing
关键词 衰落信道 MIMO系统 非均匀散射 空、时、频互相关函数 Fading channels MIMO system Nonisotropic scattering Space-time-frequency cross-correlation function
分类号 TN911.22 [电子电信—通信与信息系统]
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参考文献10

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二级参考文献12

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信号处理
2007年 第5期

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