联合OFDM技术的常数模盲均衡仿真研究  

Study on Constant Modulus Blind Equalization Jointing with OFDM

作　　者：徐洪洲 张慧娟 

机构地区：[1]大连91550部队94分队

出　　处：《通信技术》2009年第1期46-48,共3页Communications Technology

摘　　要：针对传统盲均衡技术理论上消除码间干扰需要无限长均衡器抽头系数的缺陷,文中采用OFDM技术与盲均衡技术进行结合,提出了一种联合OFDM技术的常数模盲均衡算法。利用OFDM抗多径衰落性能,再利用有限长度均衡器对信号进行均衡接收,有效地提高了通信质量。计算机仿真证明了这一方法的有效性。Theoretically, blind equalization for eliminating ISI in the communication system need infinite ladders of equalizer. In this paper, OFDM has been introduced to joint with CMA for overcomeing its shortcoming. OFDM has better performance in resisting multi-path decline of channel, CMA joint with OFDM can thus get better quality of communication by finite ladders of equalizer. Simulation results have proved its effectiveness.

关 键 词：盲均衡 OFDM 码间干扰 多径衰落 

分 类 号：TN911.5[电子电信—通信与信息系统]