基于PSAM技术的Turbo系统载波相位恢复

上海大学学报(自然科学版)

基于PSAM技术的Turbo系统载波相位恢复

石海，温冀妮，武卓

上海大学通信与信息工程学院，上海 200072

收稿日期:2007-03-13 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20
通讯作者: 石海

Carrier Phase Recovery for Turbo-Coded System with PSAM

SHI Hai,WEN Ji-ni,WU Zhuo

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2007-03-13 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20
Contact: SHI Hai

摘要/Abstract

摘要：

提出一种在瑞利衰落信道下基于PSAM（pilot symbol assisted modulation）技术的Turbo系统载波相位恢复方法.该方法利用PSAM技术引入的导频信号对瑞利衰落信道进行估计，并结合联合Turbo译码和相偏恢复方法对载波相位进行恢复.仿真结果显示该方法以较小的系统开销，对瑞利衰落信道下Turbo系统载波相位进行较好的恢复.

关键词: Turbo编码, 导频符号辅助调制, 瑞利衰落信道, 载波相位估计

Abstract:

A carrier phase recovery scheme suited for turbocoded systems with pilot symbol assisted modulation (PSAM) in Rayleigh fading channels is proposed in this paper. This scheme involves Rayleigh fading channel estimation with PSAM and utilizes the joint phase recovery and turbodecoder to aid the iterative carrier phase estimation. Simulation results show that the proposed method with small system expense can significantly improve the performance of carrier phase recovery for turbo-coded systems in Rayleigh fading channels.

Key words: carrier phase estimation

, pilot symbol assisted modulation (PSAM), turbocodes,

Rayleigh fading channel

石海;温冀妮;武卓. 基于PSAM技术的Turbo系统载波相位恢复[J]. 上海大学学报(自然科学版).

SHI Hai;WEN Ji-ni;WU Zhuo. Carrier Phase Recovery for Turbo-Coded System with PSAM [J]. Journal of Shanghai University（Natural Science Edition）.