OFDM-PLC系统中基于ANM连续域稀疏恢复的超分辨率信道估计

刘岩; 祝恩国; 郑国权

doi:10.11959/j.issn.1000-0801.2026041

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OFDM-PLC系统中基于ANM连续域稀疏恢复的超分辨率信道估计

研究与开发 | 更新时间：2026-04-08

- OFDM-PLC系统中基于ANM连续域稀疏恢复的超分辨率信道估计
- Super-resolution channel estimation based on ANM continuous-domain sparse recovery in OFDM-PLC system
- 电信科学 2026年42卷第3期页码：136-145
- 作者机构：
  
  中国电力科学研究院有限公司，北京 100192
- 作者简介：
  
  [ "刘岩（1982− ），女，中国电力科学研究院有限公司高级工程师，主要研究方向为计量采集、电力线通信等。" ]
  [ "祝恩国（1978- ），男，博士，中国电力科学研究院有限公司正高级工程师、科室主任，主要研究方向为计量采集、电力线通信等。" ]
  [ "郑国权（1988− ），男，中国电力科学研究院有限公司高级工程师，主要研究方向为计量采集、电力线通信等。" ]
- 基金信息：
  
  国家电网有限公司科技项目(5700-202455278A-1-1-ZN)
- DOI：10.11959/j.issn.1000-0801.2026041
  中图分类号： TN911.7;TP393
- 收稿：2025-09-04，
  
  修回：2025-10-09，
  
  录用：2025-11-11，
  
  纸质出版：2026-03-20
- 稿件说明：
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刘岩,祝恩国,郑国权.OFDM-PLC系统中基于ANM连续域稀疏恢复的超分辨率信道估计[J].电信科学,2026,42(03):136-145.

Liu Yan,Zhu Enguo,Zheng Guoquan.Super-resolution channel estimation based on ANM continuous-domain sparse recovery in OFDM-PLC system[J].Telecommunications Science,2026,42(03):136-145.
刘岩,祝恩国,郑国权.OFDM-PLC系统中基于ANM连续域稀疏恢复的超分辨率信道估计[J].电信科学,2026,42(03):136-145. DOI： 10.11959/j.issn.1000-0801.2026041.

Liu Yan,Zhu Enguo,Zheng Guoquan.Super-resolution channel estimation based on ANM continuous-domain sparse recovery in OFDM-PLC system[J].Telecommunications Science,2026,42(03):136-145. DOI： 10.11959/j.issn.1000-0801.2026041.

摘要

随着智能电网发展，电力线通信（power line communication，PLC）面临业务数据量激增与传输速率提升的挑战，高精度信道估计成为提升通信性能的关键。传统压缩感知方法依赖离散化字典，存在基不匹配问题，限制多径时延分辨率。针对电力线信道多径效应显著的特征，提出一种连续域稀疏恢复信道估计框架。该框架利用正交频分复用（orthogonal frequency division multiplexing，OFDM）系统子载波频率的等差特性，将多径时延映射为范德蒙德矩阵结构的频域响应，实现稀疏表示；采用原子范数最小化（atomic norm minimization，ANM）算法在连续参数空间求解，避免离散网格误差，显著提高时延分辨率；结合电力线信道指数衰减规律，通过频域衰减因子解析推导多径权重，完成信道响应闭式重构。仿真表明，该方法时延分辨率达到超分辨性能，较正交匹配追踪（orthogonal matching pursuit，OMP）等算法优势显著。

Abstract

With the development of smart grids

power line communication (PLC) faces challenges such as surging service data and increasing transmission rates

making high-precision channel estimation crucial for enhancing communication performance. Traditional compressed sensing methods rely on discretized dictionaries

which suffer from basis mismatch issues that limit multipath delay resolution. Addressing the significant multipath effects characteristic of power line channels

a continuous-domain sparse recovery framework for channel estimation was proposed. Leveraging the uniform spacing of subcarrier frequencies in orthogonal frequency division multiplexing (OFDM) systems

the framework mapped multipath delays into a frequency-domain response with a Vandermonde matrix structure

achieving sparse representation. The atomic norm minimization (ANM) algorithm was employed to solve the problem in the continuous parameter space

avoiding discrete grid errors and significantly improving delay resolution. Combined with the exponential decay characteristic of power line channels

the multipath weights were derived analytically through frequency-domain attenuation factors

enabling closed-form reconstruction of the channel response. Simulations demonstrate that the proposed method achieves super-resolution performance in delay resolution

showing significant advantages over algorithms such as orthogonal matching pursuit (OMP).

关键词

Keywords

references

Ouyang S Q , Liu G J , Huang T C , et al . Impulsive noise suppression network for power line communication [J ] . IEEE Communications Letters , 2024 , 28 ( 11 ): 2628 - 2632 .

Zimmermann M , Dostert K . A multipath model for the powerline channel [J ] . IEEE Transactions on Communications , 2002 , 50 ( 4 ): 553 - 559 .

Berger L T . MIMO power line communications: narrow and broadband standards, EMC, and advanced processing [M ] . Boca Raton : CRC Press , 2014 .

郑建宏 , 邓湛 . 一种抗脉冲噪声的宽带电力线通信系统信道估计算法 [J ] . 重庆邮电大学学报(自然科学版) , 2019 , 31 ( 1 ): 44 - 49 .

Zheng J H , Deng Z . A channel estimation algorithm for impulse noise suppression in WB-PLC system [J ] . Journal of Chongqing University of Posts and Telecommunications (Natural Science Edition) , 2019 , 31 ( 1 ): 44 - 49 .

Ding W B , Lu Y , Yang F , et al . Spectrally efficient CSI acquisition for power line communications: a Bayesian compressive sensing perspective [J ] . IEEE Journal on Selected Areas in Communications , 2016 , 34 ( 7 ): 2022 - 2032 .

邹劲松 , 潘东洋 , 周启武 , 等 . 一种改进的低压电力线载波通信压缩感知信道估计方法 [J ] . 重庆理工大学学报(自然科学) , 2019 , 33 ( 11 ): 155 - 161 .

Zou J S , Pan D Y , Zhou Q W , et al . An improved compressed sensing channel estimation method for low voltage power line carrier communication [J ] . Journal of Chongqing University of Technology (Natural Science) , 2019 , 33 ( 11 ): 155 - 161 .

Liu W , Liang T , Guan T , et al . A continue-domain sparse-based channel estimation method in power tunnel communication [C ] // Proceedings of the 2023 6th World Conference on Computing and Communication Technologies (WCCCT) . Piscataway : IEEE Press , 2023 : 68 - 72 .

Xia B S , Tang Y C . Compressive sensing based channel estimation method for MIMO-OFDM power line communication [C ] // Proceedings of the 2024 6th International Conference on Energy, Power and Grid (ICEPG) . Piscataway : IEEE Press , 2024 : 1658 - 1661 .

Coleri S , Ergen M , Puri A , et al . Channel estimation techniques based on pilot arrangement in OFDM systems [J ] . IEEE Transactions on Broadcasting , 2002 , 48 ( 3 ): 223 - 229 .

Lin J C . Least-squares channel estimation for mobile OFDM communication on time-varying frequency-selective fading channels [J ] . IEEE Transactions on Vehicular Technology , 2008 , 57 ( 6 ): 3538 - 3550 .

Schafhuber D , Matz G . MMSE and adaptive prediction of time-varying channels for OFDM systems [J ] . IEEE Transactions on Wireless Communications , 2005 , 4 ( 2 ): 593 - 602 .

Du Y , Luo Z N , Zheng J J . DCT-based channel estimation algorithm using wavelet denoising for LTE uplink systems [C ] // Proceedings of the IET International Conference on Information and Communications Technologies (IETICT 2013) . Institution of Engineering and Technology , 2013 : 470 - 474 .

Liu T . Channel estimation for power line communication [C ] // Proceedings of the 2017 IEEE 17th International Conference on Communication Technology (ICCT) . Piscataway : IEEE Press , 2018 : 272 - 276 .

Chi Y J , Scharf L L , Pezeshki A , et al . Sensitivity to basis mismatch in compressed sensing [J ] . IEEE Transactions on Signal Processing , 2011 , 59 ( 5 ): 2182 - 2195 .

Hwang T , Yang C Y , Wu G , et al . OFDM and its wireless applications: a survey [J ] . IEEE Transactions on Vehicular Technology , 2009 , 58 ( 4 ): 1673 - 1694 .

Wu X H , Liu Y Z , Zhang H Y . Individual channel estimation in RIS-aided MIMO systems using atomic norm minimization [J ] . IEEE Transactions on Communications , 2025 , 73 ( 7 ): 5111 - 5125 .

CandèS E J , Fernandez-Granda C . Towards a mathematical theory of super-resolution [J ] . Communications on Pure and Applied Mathematics , 2014 , 67 ( 6 ): 906 - 956 .

Yang Z , Li J , Stoica P , et al . Sparse methods for direction-of-arrival estimation [M ] // Academic Press Library in Signal Processing , Volume 7 . Amsterdam : Elsevier , 2018: 509 - 581 .

Bhaskar B N , Tang G G , Recht B . Atomic norm denoising with applications to line spectral estimation [J ] . IEEE Transactions on Signal Processing , 2013 , 61 ( 23 ): 5987 - 5999 .

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