卫星高阶调制信号通信下非线性误差修正均衡方法

唐成凯; 张玲玲; 廉保旺

doi:10.11959/j.issn.1000-436x.2017014

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卫星高阶调制信号通信下非线性误差修正均衡方法

无线电电子学、电信技术 | 更新时间：2024-06-05

- 卫星高阶调制信号通信下非线性误差修正均衡方法
- Nonlinear error modified equalization algorithm in high-order modulation of satellite communication
- 通信学报 2017年38卷第1期页码：117-125
- 作者机构：
  
  1. 西北工业大学电子信息学院，陕西西安 710072
  2. 西北工业大学航海学院，陕西西安 710072
- 作者简介：
  
  [ "唐成凯（1985-），男，浙江镇海人，博士，西北工业大学助理研究员，主要研究方向为卫星通信链路、卫星导航等。" ]
  [ "张玲玲（1986-），女，山西霍州人，西北工业大学博士生，主要研究方向为MIMO通信、通信信道均衡等。" ]
  [ "廉保旺（1962-），男，河南焦作人，博士，西北工业大学教授、博士生导师，主要研究方向为卫星导航、高精度组合导航等。" ]
- 基金信息：
  
  国家自然科学青年基金资助项目(61501430)
- DOI：10.11959/j.issn.1000-436x.2017014
  中图分类号： TN927
- 网络出版日期：2017-01，
  
  纸质出版日期：2017-01-25
- 稿件说明：
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唐成凯, 张玲玲, 廉保旺. 卫星高阶调制信号通信下非线性误差修正均衡方法[J]. 通信学报, 2017,38(1):117-125.

Cheng-kai TANG, Ling-ling ZHANG, Bao-wang LIAN. Nonlinear error modified equalization algorithm in high-order modulation of satellite communication[J]. Journal on communications, 2017, 38(1): 117-125.
唐成凯, 张玲玲, 廉保旺. 卫星高阶调制信号通信下非线性误差修正均衡方法[J]. 通信学报, 2017,38(1):117-125. DOI： 10.11959/j.issn.1000-436x.2017014.

Cheng-kai TANG, Ling-ling ZHANG, Bao-wang LIAN. Nonlinear error modified equalization algorithm in high-order modulation of satellite communication[J]. Journal on communications, 2017, 38(1): 117-125. DOI： 10.11959/j.issn.1000-436x.2017014.

摘要

针对现有的均衡方法计算量大、非线性误差补偿速度慢的问题，提出了一种基于幅相分离的快速非线性均衡方法。该方法首先将接收信号的幅度和相位进行分离处理，并分别通过反馈均衡模型对信号进行均衡处理以减小计算复杂度，然后利用Volterra模型对误差进行非线性修正，并通过该非线性修正误差更新反馈均衡的参数，从而快速消除非线性干扰和记忆干扰。从误码率、收敛速度和计算复杂度3个方面将所提出的方法与现有的主要均衡方法进行理论和仿真分析比较，结果表明，在相同误码率下，所提方法的计算复杂度仅为其他均衡方法的14.1%～24.9%，能够快速实现非线性干扰的消除。

Abstract

Aiming at the larger computation and the slower speed of nonlinear error compensation of traditional equalization algorithms

the fast nonlinear error equalization algorithm with amplitude and phase separation was constructed.It combined the feedback equalization to reduce the computational complexity respectively.In order to eliminate nonlinear interference and memory interference

the algorithm utilized the Volterra model to modify the error and it was adapted to update the feedback equalization parameters.The theoretical analysis and simulation compared proposed algorithm and existing conventional equalization algorithms from the bit error rate

convergence speed and computational complexity.The results show that the computational complexity is only equivalent to 14.1%～24.9% of other algorithms and proposed method can cancel the nonlinear interference quickly.

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references

唐成凯 , 廉保旺 , 张玲玲 . 卫星通信系统双向中继转发自干扰消除算法 [J ] . 西安交通大学学报 , 2015 , 49 ( 2 ): 74 - 79 .

TANG C K , LIAN B W , ZHANG L L . An algorithm to eliminate self-interference of bidirectional relaying for satellite communication systems [J ] . Journal of Xi'an Jiaotong University , 2015 , 49 ( 2 ): 74 - 79 .

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RAFATI A , LOU H , XIAO C . Soft-decision feedback turbo equalization for LDPC-coded MIMO underwater acoustic communications [J ] . IEEE Journal of Oceanic Engineering , 2014 , 39 ( 1 ): 90 - 99 .

BOLSTAD A , MILLER B A , GETTINGS K , et al . Sparse polynomial equalization of an RF receiver via algorithm,analog,and digital codesign [C ] // 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals,Systems and Computers (ASILOMAR) . 2012 : 1102 - 1106 .

GUIOMAR F P , AMADO S B , CARENA A , et al . Transmission of PM-64QAM over 1 524 km of PSCF using fully-blind equalization and Volterra-based nonlinear mitigation [C ] // 2014 European Conference on Optical Communication (ECOC) . 2014 : 1 - 3 .

TANG C K , LIAN B W , ZHANG Y . Dual loop feedback pre-distortion in satellite communication [J ] . Systems Engineering and Electronics , 2013 , 24 ( 4 ): 586 - 591 .

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