| 多输入多输出信道空域相关性评估简化模型 |
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| 引用本文： | 朱秋明,徐大专,罗艳强,陈小敏.多输入多输出信道空域相关性评估简化模型[J].电波科学学报,2011(2):203-208. |
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| 作者姓名： | 朱秋明 徐大专 罗艳强 陈小敏 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院;中国空空导弹研究院; |
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| 基金项目： | 航空基金(2009ZC52036) |
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| 摘 要： | 针对任意散射环境的多输入多输出(MIMO)信道,提出一种基于角度域脉冲采样的空域相关性评估简化模型,推导常见采样脉冲空域相关系数的近似简化解析式,并详细分析简化模型中采样脉冲数目和加权系数的选取依据,大大降低MIMO衰落信号空域相关性分析的复杂度.仿真结果表明:当到达波角度扩展为5到20度且采样脉冲数目大于36时,本文...
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| 关 键 词： | 多输入多输出(MIMO)信道 空域相关性 功率角谱(PAS) |
Simplified evaluaotin model for MIMO channel spatial correlation |
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| ZHU Qiu-ming XU Da-zhuan LUO Yan-qiang CHEN Xiao-min.Simplified evaluaotin model for MIMO channel spatial correlation[J].Chinese Journal of Radio Science,2011(2):203-208. |
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| Authors: | ZHU Qiu-ming XU Da-zhuan LUO Yan-qiang CHEN Xiao-min |
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| Affiliation: | ZHU Qiu-ming1 XU Da-zhuan1 LUO Yan-qiang2 CHEN Xiao-min1(1.College of Information Science and Technology,Nanjing Univer sity of Aeronautics and Astronautics,Nanjing Jiangsu 210016,China,2.The Academe of Air-to-air Missile of China,Luoyang Henan 471009,China) |
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| Abstract: | A simple spatial correlation model based on pulse sampling principle in angle domain is presented,which can be used to evaluate the spatial correlati、on of received signals in multiple-iput multiple-output(MIMO) channels under arbitrary scattering scenarios.The approximate spatial correlation formulation for different sampling pulses is derived respectively,the number of sampling pulse and weight coefficients are also explored in details,which can reduce the complexity of spatial correlation computation significantly.Simulation results show that when the angle spread of arrival signal is between 5 and 20 degrees,the average absolute error of proposed model is less than 0.005 with the number of sampling pulses over 36, which can meet the accuracy demands in channel modeling,antenna array design,system capacity and bit error rate calculation. |
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| Keywords: | MIMO channels spatial correlation power azimuth spectrum(PAS) |
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