用于补偿高次畸变的一种自适应均衡法  

An adaptive equalization method for compensating high abnormal

作　　者：王振力[1] 张雄伟[1] 李荣锋[2] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007 [2]空军雷达学院,湖北武汉430010

出　　处：《通信学报》2005年第2期127-130,共4页Journal on Communications

摘　　要：在自适应通道均衡中,常规均衡法中的高阶均衡器已不能有效补偿因通道失配严重而产生的高次畸变,从而导致自适应阵列处理性能的急剧下降。提出了一种基于带宽分割的自适应均衡法,即将待均衡频带分割成多个子带,并对每个子带分别进行均衡。与常规均衡法相比,该方法可有效均衡通道失配所产生的高次畸变。理论分析和计算机仿真结果表明该方法能较大幅度地提高自适应均衡器的性能。In adaptive channel equalization, the conventional equalization method couldn抰 effectively compensate the high order abnormal produced by severe channel mismatch, so it severely degraded the performance of an adaptive array. In this paper, an adaptive equalization method based on band-partition was presented, in which the frequency-band was partitioned into several sub-bands before being equalized. Compared with the conventional method, it could compensate channel mismatch more effectively under high abnormal. Both the theoretical analysis and the computer simulation results indicate that the proposed method can fairly improve the performance of the adaptive equalizer.

关 键 词：自适应阵列 自适应通道均衡 通道失配 高次畸变 

分 类 号：TN911.7[电子电信—通信与信息系统]