电波科学学报2026，Vol.41Issue(4)：674-682,692,10.DOI:10.12265/j.cjors.2025251
空海场景信道测量与特性分析
Channel measurement and characteristics analysis in air-sea scenarios
摘要
Abstract
To meet the requirements of ubiquitous coverage in sixth-generation mobile communication(6G),the space-air-ground-sea integrated network(SAGSIN)has emerged as a key enabling technology.To meet the requirements of ubiquitous coverage in sixth-generation mobile communication(6G),the space-air-ground-sea integrated network(SAGSIN)has emerged as a key enabling technology.As an integral component of SAGSIN,reliable air-sea communications rely on an in-depth understanding of air-sea channel propagation characteristics.To reveal the propagation mechanisms of air-sea communication links,this paper focuses on two typical dynamic air-sea channel scenarios.A time-domain channel measurement platform was employed to conduct a measurement campaign in the 2 GHz frequency band,followed by extraction and statistical analysis of large-scale and small-scale channel parameters.The analysis results show that the measured path loss is close to the free-space path loss.The small-scale fading envelope is best fitted by the Rician distribution,verifying that the air-sea wireless channel is dominated by a strong line-of-sight(LoS)path.Comparison between the Doppler shift of the main path and the mean Doppler shift(MDS)at corresponding instants reveals that the main path Doppler shift has a decisive influence on the MDS.The Doppler spread is best fitted by the Gamma distribution,with relatively small mean and standard deviation values indicating low frequency dispersion and limited multipath components in the air-sea channel.关键词
空海场景/无人机(UAV)/信道测量/信道建模/路径损耗(PL)/阴影衰落/多普勒频移Key words
air-sea scenarios/UAV/channel measurement/channel modeling/path loss/shadow fading/Doppler shift分类
信息技术与安全科学引用本文复制引用
何搏洋,唐盼,刘培杰,丁子航,丁征,彭培硕,郑皓,田磊,张建华..空海场景信道测量与特性分析[J].电波科学学报,2026,41(4):674-682,692,10.基金项目
国家自然科学基金(62341128,62571053)National Natural Science Foundation of China(62341128,62571053) （62341128,62571053）
