电波科学学报2026，Vol.41Issue(4)：655-665,11.DOI:10.12265/j.cjors.2025261
面向近海船岸通信的非平稳信道测量与多状态建模
Non-stationary channel measurement and multi-state modeling for ship-to-shore communications
摘要
Abstract
To address the insufficient characterization of non-stationary properties in ship-to-shore channels,this paper presents a comprehensive analysis and statistical modeling study based on broadband measurements at 720 MHz in maritime environments.First,the channel non-stationarity is quantitatively analyzed using a time-domain correlation coefficient method based on the local scattering function(LSF).The measured average stationary time of approximately 1.35 s serves as the basis for determining the statistical window for parameter extraction.Subsequently,a joint non-stationary modeling method is proposed.Gaussian mixture models(GMM)cluster the Rician K-factor of the strongest path and logarithmic root mean square(RMS)delay spread to classify the channel into dynamic scattering and stable line-of-sight(LoS)states.A two-state Markov chain model then characterizes the dynamic transitions,revealing that the stable LoS state dominates in near-shore regions while an alternating pattern emerges offshore.Finally,tapped delay line(TDL)models are established for each state to capture their specific multipath fading characteristics.Simulation results demonstrate that the proposed model accurately reproduces the time-varying non-stationary features of ship-to-shore channels,providing theoretical support for the design and evaluation of maritime communication systems.关键词
船岸通信/信道测量/非平稳性/信道建模/抽头延时线(TDL)模型Key words
ship-to-shore communications/channel measurement/non-stationarity/channel modeling/tapped delay line model分类
信息技术与安全科学引用本文复制引用
韩润雨,艾渤,周顺,陈晨,费丹,刘伟荣,马毅琰,江天宇,杨焱..面向近海船岸通信的非平稳信道测量与多状态建模[J].电波科学学报,2026,41(4):655-665,11.基金项目
中央高校基本科研基金(2024JBGP006,2022JBQY004) （2024JBGP006,2022JBQY004）
国家自然科学基金(62341127,62571541,62271041)The Fundamental Research Funds for the Central Universities under Grant(2024JBGP006,2022JBQY004) （62341127,62571541,62271041）
National Natural Science Foundation of China(62341127,62571541,62271041) （62341127,62571541,62271041）
