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.
出处
《通信学报》
EI
CSCD
北大核心
2005年第2期127-130,共4页
Journal on Communications
关键词
自适应阵列
自适应通道均衡
通道失配
高次畸变
adaptive array
adaptive channel equalization
channel mismatch
high abnormal
