单通道同频混合信号的最佳接收及盲解调性能界

于宏毅; 查仁鹏; 沈智翔; 沈彩耀; 胡赟鹏

doi:10.11959/j.issn.1000-436x.2024265

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单通道同频混合信号的最佳接收及盲解调性能界

学术论文 | 更新时间：2025-01-14

- 单通道同频混合信号的最佳接收及盲解调性能界
- Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals
- 通信学报 2024年45卷第12期页码：142-152
- 作者机构：
  
  信息工程大学信息系统工程学院，河南郑州 450000
- 作者简介：
  
  [ "于宏毅（1963- ），男，内蒙古呼和浩特人，博士，信息工程大学教授、博士生导师，主要研究方向为无线通信、智能信号处理等。" ]
  [ "查仁鹏（1999- ），男，四川隆昌人，信息工程大学硕士生，主要研究方向为盲信号处理、信道编译码技术等。" ]
  [ "沈智翔（1985- ），男，浙江湖州人，博士，信息工程大学讲师，主要研究方向为无线通信、通信信号处理。" ]
  [ "沈彩耀（1981- ），男，福建漳州人，博士，信息工程大学讲师，主要研究方向为智能通信、通信信号处理。" ]
  [ "胡赟鹏（1978- ），男，江西南昌人，博士，信息工程大学副教授、硕士生导师，主要研究方向为通信信号处理。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61501517)
- DOI：10.11959/j.issn.1000-436x.2024265
  中图分类号： TN911.7
- 收稿日期：2024-09-12，
  
  修回日期：2024-11-26，
  
  纸质出版日期：2024-12-25
- 稿件说明：
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于宏毅,查仁鹏,沈智翔等.单通道同频混合信号的最佳接收及盲解调性能界[J].通信学报,2024,45(12):142-152.

YU Hongyi,ZHA Renpeng,SHEN Zhixiang,et al.Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals[J].Journal on Communications,2024,45(12):142-152.
于宏毅,查仁鹏,沈智翔等.单通道同频混合信号的最佳接收及盲解调性能界[J].通信学报,2024,45(12):142-152. DOI： 10.11959/j.issn.1000-436x.2024265.

YU Hongyi,ZHA Renpeng,SHEN Zhixiang,et al.Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals[J].Journal on Communications,2024,45(12):142-152. DOI： 10.11959/j.issn.1000-436x.2024265.

摘要

针对混合信号码元序列的最佳检测问题，在同频混合接收基带信号模型的基础上，推导得到联合最大似然盲检测的充分统计量，并给出“混叠波形匹配滤波+符号速率双抽样”的最佳接收机设计。基于充分统计量模型，利用Forney方法推导出了同频混合信号单通道盲解调的性能下界。由于最佳接收机的复杂度随等效符号速率抽样信道长度呈指数增长，针对实际应用中的信道截短问题，进一步分析了截短误差对盲解调性能的影响。结果表明，最佳接收机仿真结果与理论性能分析结果吻合，验证了所推导性能界的合理性。

Abstract

Aiming at the problem of optimal detection of mixed signal symbol sequences

on the basis of co-frequency mixed receiving baseband signal model

sufficient statistics for joint maximum likelihood blind detection were derived

and the optimal receiver design of “mixed waveform matched filtering and symbol rate dual sampling” was given. Based on the sufficient statistics model

a lower bound on the performance of single-channel blind demodulation for co-frequency mixed signals was derived using Forney’s method. Since the complexity of the optimal receiver grows exponentially with the equivalent symbol rate sampling channel length

the impact of the truncation error on the blind demodulation performance was further analyzed for the channel truncation problem in practical applications. The result shows that the simulation results of the optimal receiver coincide with the theoretical performance analysis results

verifying the reasonableness of the derived performance bounds.

关键词

Keywords

references

DANKBERG M . Paired carrier multiple access (PCMA) for satellite communications [C ] // Pacific Telecommunications Conference , 1998 .

邓文 , 黄知涛 , 王翔 . 单通道通信信号盲分离方法的研究进展综述 [J ] . 通信学报 , 2023 , 44 ( 8 ): 179 - 194 .

DENG W , HUANG Z T , WANG X . Overview of research progress on blind separation methods for single channel communication signal [J ] . Journal on Communications , 2023 , 44 ( 8 ): 179 - 194 .

HOU X Q , GAO Y . Single-channel blind separation of co-frequency signals based on convolutional network [J ] . Digital Signal Processing , 2022 , 129 : 103654 .

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

CHEN C , LU Z F , GUO Z , et al . Deep learning based single-channel blind separation of co-frequency modulated signals [C ] // Proceedings of International Conference on Communications and Networking in China . Berlin : Springer , 2020 : 607 - 618 .

MA H , ZHENG X , YU L , et al . A novel end-to-end deep separation network based on attention mechanism for single channel blind separation in wireless communication [J ] . IET Signal Processing , 2023 , 17 ( 2 ): e12173 .

廖灿辉 , 万坚 , 周世东 . 两同频调制信号混合单通道盲分离的性能界 [J ] . 清华大学学报(自然科学版) , 2010 , 50 ( 10 ): 1646 - 1650 .

LIAO C H , WAN J , ZHOU S D . Single-channel blind separation performance bound of two co-frequency modulated signals [J ] . Journal of Tsinghua University (Science and Technology) , 2010 , 50 ( 10 ): 1646 - 1650 .

DUAN C W , ZHAN Y F , LIANG H . More general performance evaluation for single-channel PCMA signals blind separation [J ] . IET Communications , 2017 , 11 ( 15 ): 2297 - 2302 .

郭一鸣 , 彭华 . 成对载波多址复用混合信号非合作接收单通道盲分离性能界 [J ] . 电子与信息学报 , 2019 , 41 ( 1 ): 240 - 247 .

GUO Y M , PENG H . Single channel blind separation performance bound of non-cooperative received paired carrier multiple access mixed signal [J ] . Journal of Electronics & Information Technology , 2019 , 41 ( 1 ): 240 - 247 .

UNGERBOECK G . Adaptive maximum-likelihood receiver for carrier-modulated data-transmission systems [J ] . IEEE Transactions on Communications , 1974 , 22 ( 5 ): 624 - 636 .

WARNER E S , PROUDLER I K . Single-channel blind signal separation of filtered MPSK signals [J ] . IEEE Proceedings-Radar, Sonar and Navigation , 2003 , 150 ( 6 ): 396 .

崔荣涛 , 李辉 , 万坚 , 等 . 一种基于过采样的单通道MPSK信号盲分离算法 [J ] . 电子与信息学报 , 2009 , 31 ( 3 ): 566 - 569 .

CUI R T , LI H , WAN J , et al . An over-sampling based blind separation algorithm of single channel MPSK signals [J ] . Journal of Electronics & Information Technology , 2009 , 31 ( 3 ): 566 - 569 .

廖灿辉 , 黄渊凌 , 周世东 . 卫星成对载波多址信号的一种联合分离解调算法 [J ] . 通信学报 , 2010 , 31 ( 6 ): 99 - 105 .

LIAO C H , HUANG Y L , ZHOU S D . Joint separation and demodulation algorithm for paired carrier multiple access signals [J ] . Journal on Communications , 2010 , 31 ( 6 ): 99 - 105 .

FORNEY G . Maximum-likelihood sequence estimation of digital sequences in the presence of intersymbol interference [J ] . IEEE Transactions on Information Theory , 1972 , 18 ( 3 ): 363 - 378 .

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