正交时频空调制的信道估计与信号检测技术研究现状OA北大核心CSTPCD
Research status of channel estimation and signal detection techniques for orthogonal time frequency space modulation
正交时频空(OTFS)调制是一种适用于高多普勒衰落信道的二维时延-多普勒(DD)域复用的技术,它通过一组二维变换将时间-频率(TF)域双选择性信道转换为在DD域近乎稳定的信道,使OTFS系统有能力获得时间和频率全分集.OTFS系统要想获得这种时间和频率全分集增益,需要为接收机设计高性能的信道估计和信号检测算法.首先介绍了OTFS调制的基本原理和系统模型,然后对信道估计和信号检测算法进行了分类综述和比较,最后讨论了信道估计和信号检测的未来挑战和解决途径.
Orthogonal time frequency space(OTFS)modulation is a multiplexing technique designed in the two-dimensional(2D)delay-Doppler domain suited for high Doppler fading channels.OTFS converts a doubly-selective channel into an almost non-fading channel in the delay-Doppler domain through a series of 2D transformations.OTFS has the potential of capturing time-frequency full diversity.In order to obtain the time-frequency full diversity gain,a re-ceiver with advance…查看全部>>
王永川;周平;黄局
陆军工程大学石家庄校区,河北 石家庄 050003陆军工程大学石家庄校区,河北 石家庄 050003陆军工程大学石家庄校区,河北 石家庄 050003
电子信息工程
正交时频空调制信道估计信号检测时延-多普勒
orthogonal time frequency space modulationchannel estimationsignal detectiondelay-Doppler
《通信学报》 2024 (9)
229-243,15
陆军工程大学装备综合研究基金资助项目(No.KYSZJKZBXM24041)Equipment Comprehensive Research Project of Army Engineering University(No.KYSZJKZBXM24041)
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