一种用于无线信道的逐幸存处理均衡器

Equalizer Based on Per-survivor Processing for Wireless Channel

摘要:

提出了一种适用于无线时变信道的逐幸存处理均衡器。通过训练序列得到信道参数的初始估计值,此后在Viterbi算法进行网格搜索的过程中,使得每一条幸存路径维持各自的信道参数,并在确定幸存分支后利用历史幸存序列对信道参数值进行更新,实现了信道参数的无时延估计。仿真结果表明,在无线时变信道环境下,逐幸存处理均衡器的性能明显优于其他传统均衡器。

Abstract:

An adaptive MLSE receiver based on per-survivor processing (PSP) for digital transmissions over high frequency (HF) channels is proposed in this paper. In the proposed receiver,initial channel impulse response (CIR) is estimated with a training sequence a