MIMO信道建模及硬件模拟器研制  

MIMO channel modeling and development of hardware emulator

作　　者：叶佳[1] 李浩[1,2] 朱秋明[2] Ye Jia;Li Hao;Zhu Qiuming(ZTE Nanjing RN.D Center Nanjing 210012,China;College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]中兴通讯南京研发中心,南京210012 [2]南京航空航天大学电子信息工程学院,南京210016

出　　处：《国外电子测量技术》2018年第7期82-88,共7页Foreign Electronic Measurement Technology

摘　　要：针对收发端配置U×S天线阵列的MIMO无线通信系统,提出了一种基于Kronecker积的MIMO信道模型,在此模型的基础上设计并实现了基于FPGA的MIMO信道模拟器,给出了该模拟器的系统架构,并详细分析了应用软件层和FPGA硬件层的算法设计过程,以及关键模块包括复谐波叠加以及高精度时延的硬件实现原理。实测结果表明,该信道模拟器输出衰落的包络统计分布、功率时延谱、互相关矩阵以及多普勒功率谱等统计特性与理论值吻合,可作为无线通信系统研发的测试设备,应用于算法验证、方案优化和性能分析。For a MIMO channel set of U×Swith the antenna array,this paper constructs MIMO channel model based on Kronecker product.According to the proposed model,a MIMO channel emulator is designed and implemented on a FPGA hardware platform.The system architecture of simulator is presented,and the algorithm design process of application software layer and FPGA hardware layer is analyzed,and illustrates the implementation principle of the critical module.The measured results show that,the output envelope statistical distribution,power delay spectrum,mutual correlation matrix and doppler power spectrum are consistent with theoretical values,which means it can be a test equipment developed for wireless communication system,it is applied to algorithm verification,scheme optimization and performance analysis.

关 键 词：MIMO信道模型 FPGA 信道模拟器 多普勒功率谱 

分 类 号：TN98[电子电信—信息与通信工程]