基于离散Hartley变换的单载波频域均衡系统  

Single carrier frequency domain equalization system based on discrete Hartley transform

作　　者：侯天印 刘俐[1] 王智森[1] HOU Tianyin;LIU Li;WANG Zhisen(School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学信息科学与工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2017年第5期370-374,共5页Journal of Dalian Polytechnic University

摘　　要：设计了在单载波频域均衡系统中基于离散Hartley变换的空频块编码设计方案。通过将二维复数调制信号的实部和虚部分别进行离散Hartley变换,再合并,使信号从时域变换到频域,进行空频块编码设计。利用离散Hartley变换矩阵的互补特性,将信道矩阵对角化,从而实现单抽头的频域均衡。结果表明,与传统的基于傅里叶变换的空频块编码单载波频域均衡系统相比,该算法能够获得相似的性能,但接收机端的计算复杂度可降低一半。A space-frequency block-coded（SFBC） single-carrier frequency-domain equalization（SC-FDE）system based on discrete Hartley transform（DHT）has been proposed.Two DHTs were used to transform the real and imaginary parts of the 2-dimensional complex signaling from time domain to frequency domain.With the complementary property of DHT matrix,the DHT-based SC-FDE architecture could perfectly diagonalize the channel matrix and be easily equalized by an one-tap frequency domain equalizer.The results showed that the scheme could achieve similar performance but halve the computational complexity of the receiver compared to the conventional DFT-based SFBC SC-FDE system.

关 键 词：单载波频域均衡 空频块编码 离散Hartley变换 三角变换 载波耦合干扰 

分 类 号：TN915.1[电子电信—通信与信息系统]