Td-LTE系统增强多天线技术研究中期报告摘要：随着移动通信用户的急剧增长，无线通信系统带宽的需求也在不断增加。天线技术是提高无线通信系统性能的关键技术。本文以Td-LTE为研究对象，对增强多天线技术在Td-LTE系统中的应用进行了研究。首先，简要介绍了Td-LTE系统的基本特点和多天线技术的基本原理。然后，详细阐述了多天线技术在Td-LTE系统中的应用，包括天线选择分集、空间分集、波束赋形、预编码等技术。最后，通过仿真实验验证了多天线技术在Td-LTE系统中的性能优势。通过本文的研究，可以得出结论：增强多天线技术在Td-LTE系统中具有重要的应用价值，可以有效提高系统的容量和覆盖范围。关键词：Td-LTE；多天线技术；天线选择分集；空间分集；波束赋形；预编码Abstract:Withtherapidgrowthofmobilecommunicationusers,thedemandforbandwidthofwirelesscommunicationsystemsisalsoincreasing.Antennatechnologyisakeytechnologytoimprovetheperformanceofwirelesscommunicationsystems.Inthispaper,Td-LTEistakenastheresearchobject,andtheapplicationofenhancedmulti-antennatechnologyinTd-LTEsystemisstudied.Firstly,thebasiccharacteristicsofTd-LTEsystemandthebasicprincipleofmulti-antennatechnologyarebrieflyintroduced.Then,theapplicationofmulti-antennatechnologyinTd-LTEsystemiselaboratedindetail,includingantennaselectiondiversity,spatialdiversity,beamforming,andprecoding.Finally,theperformanceadvantagesofmulti-antennatechnologyinTd-LTEsystemareverifiedthroughsimulationexperiments.Throughtheresearchinthispaper,itcanbeconcludedthatenhancedmulti-antennatechnologyhasimportantapplicationvalueinTd-LTEsystem,andcaneffectivelyimprovethesystemcapacityandcoveragerange.Keywords:Td-LTE;multi-antennatechnology;antennaselectiondiversity;spatialdiversity;beamforming;precoding