Blind separation of asymmetric PCMA signal based on soft information joint correction

Qiang HUANG; Hua PENG; Tian-yun LI; Ke-xian GONG

doi:10.11959/j.issn.1000-436x.2017044

您当前的位置：

首页 >

文章列表页 >

Blind separation of asymmetric PCMA signal based on soft information joint correction

Correspondences | 更新时间：2024-06-05

- Blind separation of asymmetric PCMA signal based on soft information joint correction
- Journal on Communications Vol. 38, Issue 4, Pages: 178-189(2017)
- 作者机构：
  
  解放军信息工程大学信息系统工程学院，河南郑州 450002
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61401511)
- DOI：10.11959/j.issn.1000-436x.2017044
  CLC： TN911.7
- Online First：2017-04，
  
  Published：25 April 2017
- 稿件说明：
移动端阅览
Qiang HUANG, Hua PENG, Tian-yun LI, et al. Blind separation of asymmetric PCMA signal based on soft information joint correction[J]. Journal on Communications, 2017, 38(4): 178-189.
DOI：

Qiang HUANG, Hua PENG, Tian-yun LI, et al. Blind separation of asymmetric PCMA signal based on soft information joint correction[J]. Journal on Communications, 2017, 38(4): 178-189. DOI： 10.11959/j.issn.1000-436x.2017044.

摘要

针对非对称PCMA信号盲分离问题，在一种低复杂度的盲分离结构基础上，提出基于软信息联合修正提高强弱信号解调性能的盲分离算法。该算法利用强弱信号解调相互的影响，通过尝试修正高出错概率的强信号接收符号，比较修正前后强弱信号符号星座质量（软信息）的优劣来决定是否修正当前强弱信号的硬判决值，从而降低强弱信号解调误码率。仿真结果表明，当强信号信噪比高于17 dB时，强弱信号解调误码率分别降低近2个数量级，且算法计算复杂度低于传统基于重构抵消算法的计算复杂度。

Abstract

On the basis of a blind separation structure with low complexity

an efficient blind separation algorithm based on soft information joint correction was proposed for asymmetric PCMA to improve the demodulation performance of strong and weak signals.By utilizing the demodulation mutual influence between the strong and weak signals

this algorithm tried to correct the receiving symbols of strong signal with high error probability.Comparing the symbol constellation quality (soft information) of signals before and after correction

it can be decided whether the hard decision values of strong and weak signals need to be modified

which efficiently reduce the demodulation error rate of strong and weak signals.The simulation results show that

the demodulation error rate of strong and weak signals can be reduced by nearly two orders of magnitude after joint correction especially when the signal to noise ratio of strong signal is higher than 17 dB

and the computational complexity of this algorithm is lower than that of the conventional reconstruction cancellation algorithm.

关键词

Keywords

references

MARK D , . Paired carrier multiple access(PCMA) for satellite communication [C ] // Pacific Telecommunications Conference . Honolulu,Hawaii , 1998 : 787 - 791 .

DEMIR C , SARAQLAR M , CEMGIL A T . Single-channel speechmusic separation for robust ASR with mixture models [J ] . IEEE Trans on Audio Speech and Language Processing , 2013 , 21 ( 4 ): 725 - 736 .

TENGTRAIRAT N , GAO B , WOO W L , et al . Single-channel blind separation using pseudo-stereo mixture and complex 2-D histogram [J ] . IEEE Transactions on Neural Networks and Learning Systems , 2013 , 24 ( 11 ): 1722 - 1735 .

GAO B , WOO W L , DLAY S S . Unsupervised single-channel separation of nonstationary signals using gammatone ilterbank and Itakura-Saito nonnegative matrix two-dimensional actorizations [J ] . IEEE Transactions on Circuits and Systems , 2013 , 60 ( 3 ): 662 - 675 .

TU S L , ZHENG H , GU N . Single-channel blind separation of two QPSK signals using per-survivor processing [C ] // IEEE Asia Pacific Conference on Circuits and Systems . 2008 : 473 - 476 .

涂世龙 , 陈越新 , 郑辉 . 利用纠错编码的同频调制混合信号单通道盲分离 [J ] . 电子与信息学报 , 2009 , 31 ( 9 ): 2113 - 2117 .

TU S L , CHENG Y X , ZHENG H . Exploiting error-control codes in single-channel blind separation of co-frequency modulated signals [J ] . Journal of Electronics ＆Information Technology , 2009 , 31 ( 9 ): 2113 - 2117 .

廖灿辉 , 涂世龙 , 万坚 . 基于迭代的同频混合信号单通道盲分离/译码算法 [J ] . 通信学报 , 2011 , 32 ( 8 ): 111 - 117 .

LIAO C H , TU S L , WAN J . Iterative algorithm on single-channel blind separation and decoding of co-frequency modulated signals [J ] . Journal on Communications , 2011 , 32 ( 8 ): 111 - 117 .

杜健 , 巩克现 , 彭华 . 基于CHASE译码思想的PCMA信号盲分离算法 [J ] . 通信学报 , 2015 , 03 : 98 - 103 .

DU J , GONG K X , PENG H . Algorithm for blind separation of PCMA based on CHASE decoding [J ] . Journal on Communications , 2015 , 03 : 98 - 103 .

崔鹏辉 , 熊涛 , 江桦 , 等 . 基于判决反馈前馈的RSDFF-PSP盲分离算法 [J ] . 电子学报 , 2016 , 03 : 633 - 638 .

CUI P H , XIONG T , JIANG Y , et al . RSDFF-PSP blind separation algorithm based on decision feedback-feedforward [J ] . Acta Electronica Sinica , 2016 , 03 : 633 - 638 .

杨勇 , 张冬玲 , 彭华 , 等 . 利用 Gibbs 采样的邻频混合信号单通道盲分离 [J ] . 通信学报 , 2015 , 36 ( 4 ): 156 - 162 .

YANG Y , ZHANG D L , PENG H , et al . Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler [J ] . Journal on Communications , 2015 , 36 ( 4 ): 156 - 162 .

付迪 , 高勇 . 非对称 PCMA 卫星信号的截获方法 [J ] . 军事通信 , 2007 , 07 : 28 - 30 ,34.

FU D , GAO Y . Signal interception method for asymmetric PCMA satellite communication systems [J ] . Modern Electronics Technique , 2007 , 07 : 28 - 30 ,34.

JIANG W , LI D . Iterative single-antenna interference cancellation:algorithms and results [J ] . IEEE Trans on Vehicular Technology , 2009 , 58 ( 5 ): 2214 - 2224 .

廖灿辉 , 周世东 , 朱中梁 . 从强信号掩盖中检出弱信号的一种新检测算法 [J ] . 系统仿真学报 , 2010 , 04 : 986 - 990 .

LIAO C H , ZHOU S D.ZHU Z L . Novel algorithm for activity detection of weak signals covered by strong signal [J ] . Journal of System Simulation , 2010 , 04 : 986 - 990 .

莫平华 , 张越 , 文晓 , 等 . 基于重构抵消的非对称 PCMA 信号分离技术研究 [J ] . 电信技术研究 , 2014 ( 2 ): 21 - 27 .

MO P H , ZHANG Y , WEN X , et al . Research on asymmetric PCMA signal separation technology based on reconstruction offset [J ] . Research on Telecommunication Technology , 2014 ( 2 ): 21 - 27 .

万坚 , 涂世龙 , 廖灿辉 , 等 . 通信混合信号盲分离理论与技术 [M ] . 国防工业出版社 , 2012 : 128 - 130 .

WAN J , TU S L , LIAO C H , et al . Theory and technology on blind source separation of communication signals [M ] . Beijing : National Defense Industry PressPress , 2012 .

杨小女 . 同步参数高精度估计研究 [D ] . 解放军信息工程大学 , 2007 : 15 - 21 , 33 - 36

YANG X N . Research on high accuracy estimation of synchronization parameters [D ] . PLA Information Engineering University , 2007 : 15 - 21 , 33 - 36

PROAKIS J G . 数字通信(第五版) [M ] . 北京 : 电子工业出版社 , 2011 : 198 - 224 , 512 - 528 .

PROAKIS J G . Solutions manual digital communications (5th Edition) [M ] . Beijing : Publishing House of Electronics Industry , 2011 : 198 - 224 , 512 - 528 .

Views

1667

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Scrambler blind recognition method based on soft information

Blind separation algorithm of PCMA signals with different symbol rates based on DG-PSP

Convolutive blind separation algorithm based on complex Givens matrix and bat optimization

Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation

Polynomial estimation method for PN sequence based on reliability accumulation

Related Author

Pei-dong YU

Ze-liang CHEN

Yi-ming GUO

Yong YANG

Xue-juan WEI

Hao WANG

Zhi-cheng JIA

Da-wei HAN

Related Institution

Troop of PLA

Institute of Electronic Information Engineering, Hebei University of Technology

Institute of Precision Instrument and Optoelectronics Engineering, Tianjin University

Institute of Information Engineering, Tianjin University of Commerce

Information System Engineering College,PLA Information Engineering University

AI问答

⁰