摘要针对对流层散射信道的频率选择性,提出了一种基于训练序列的单载波空时分组编码(Space Time Block Code,STBC)系统的信道估计算法。文章首先建立了单载波空时分组编码系统的系统模型,确定了发送分组结构和接收技术;接着提出了信道估计算法,并讨论该算法中Chu序列的最优性;最后通过仿真分析了文章中信道估计算法的性能和效率。
3ALAMOUTI S M. A simple transmit diversity technique for wireless communications[ J]. IEEE Journal on Selected Areas in Communications, 1998,16(8) : 1451 - 1458.
4DHAHIR N A. Single-carrier frequency-domain equalization for space time block-coded transmissions over frequency- selective fading channels [ J ] . IEEE Communications Letters, 2001,5(7) :304 - 306.
5ZHOU SHENG-LI, GIANNAKIS G B. Single-carrier space time block-coded transmissions over frequency- selective fading channels [ J ], IEEE Transactions on hfformation Theory,2003,49( 1 ) : 164 - 179.
7CROZIER S N, FALCONER DD, MAHMOUD S A. Least sum of squared errors ( LSSE ) channel estimation [ J ]. IEEE Proceedings-F, 1991 , 138(4) :205 - 208.
8THOMPSON J S, TANNER R, BEVAN D, Weight error loss for wireless systems with antenna arrays [ C ]//Broadband Communications, 2002 Access , Transmission, Networking, 2002 IEEE International Zurich Seminaron ,2002:4-1 -4-6.
9NG N C L, LETAIEF K B, MURCH R D. Complex optimal sequences with constant magnitude for fast channel estimation initialization[J]. Communicatons, IEEE Transactionson, 1998, 46(3) :305 - 308.
