SC_FDE系统信道估计与频域均衡算法研究与仿真

【实例简介】
单载频频域均衡的信道估计和频域均衡研究仿真
20097 28 7 L 0 ID FT 2.2.2 CSI CSI 元(n), FFT CSI X(k), R(k) CS 辅助数据 信道捕获 H(K) 同步m)的 T RA\数据一跟 踪CSI 均衡F判决S 重构 X() FR C SI X1=(Xn…kXo=(Xn…N Ho(k)=R(k) h=0,1,…;N-1 (5) CSI U H re(le) U l=2…,U-1;n=1,…,N CSI (7) (2) CSI CSI SG FDE 率 辅助数据块 数据数据 ○ooo●○OOO● CP ○oo●○● ●0○o○●○o○○ :(zero forcing, ZF) (m inimum mean square error, MMSE) ZE C(k)= ;k=0,1,…,N-1 (8) X(h) X H Y= XH+ W= t w X(k) XuN H (b<1 (6 MMSE MMSE N Hh C(b=|H(b2+1SMPh=01..,N-1(9) H CS 9 U×N :H"(k) H() SNR 19 o1994-2012ChinaAcademicJournalElectronicPublishingHouseAllrightsreservedhttp://www.cnki.net 20097 28 7 10 MMSE MATLA B 判决反馈MMSE均衡 判决反馈ZF均衡 ZF MMSE 插值MMSE均衡 U W 插值ZF均衡 UW+MMSE均衡 W+ZF均衡 6 10 16 SG FDE l . 8MHz SNR/dB (FT)—256CP (AWGN+ A WGN awgn+ SUL3 [0 0.40.9]μs, SG FDE ;[0-5-10dB 0.5H: 4 AWGN AWGN MMSE ZF MMSE ZE SGFDE ZE MMSE ZF MMSE [1 ZENG YH, NGTSPilot cy clic prefix ed sin gle carri er co mmunication: channel est mation and equ aliz at ion [J]. Signal Processing Letters, IEEE, 2005, 12: 56-59 [2 ZE SG FDE 2003.12:3740. 31 COLERI S, ERGEN M, PURI A, et al. Channel esti mation techniques based on pilot arrangement in 奇音 OF DM systems[ J]. Broadcast ing, IEEE T rans actio ns on.2002.48:223229 [4 NEWMANN DJ AnLl external problem for polyno mials[]. Proc. Amer. M ath. SoC, 1965, 16: 12871290 [5 LI J F, DU Y Channel Estimation Schemes for SC FDE/FS System[ C]. ISCC 06, 2006 [6 PROAKISJG M1.4 号一判决反馈MMSE均衡 判决反馈ZF均衡 2003:4441468 插值MMSE均衡 [7 ERCEG V, GREENSTEIN L J An empirically bas ec 插值ZF均衡 UW+MMSE均衡 path loss model for wireless channels in suburban err- eUW+ZF均衡 68101a41618 v ironments[J]. IEEE Journal on Selected Areas of SNR/dB Communications. 1999.17:12051211 (AWGN 20 o1994-2012ChinaAcademicJournalElectronicPublishingHouseAllrightsreservedhttp://www.cnki.net 【实例截图】
【核心代码】