无线电通信技术2024，Vol.50Issue(5)：868-875,8.DOI:10.3969/j.issn.1003-3114.2024.05.004
陆基海洋通信船舶绕射损耗模型研究
Study on Diffraction Loss Model of Land-based Marine Communication Ship
摘要
Abstract
The huge number and throughput of ships in major maritime ports and waterways leads to frequent blockage of land-based ship communication links by passing ships.This significantly impacts the connection quality of land-based ship communication links.By analyzing the large-scale channel characteristics resulting from the shadow effect caused by passing large ships in the ship-shore communication channel measurement scene,we have developed a precise model based on measured data.The analysis incorporates factors such as the first Fresnel radius,offshore distance,receiver antenna path distance,antenna connection height,and relative height change due to sea surface curvature.It also classifies different time nodes corresponding to the relative position of shielded ships in the first Fresnel region.Furthermore,a ship diffraction loss model is constructed based on three-dimensional occluding ship data and relative positions of receiving and originating ends using single blade diffraction model and single circular row diffraction model recommended in ITU-R P.526-15(10/2019).Model simulation and comparison analyses for two ship occlusion processes within D06 range(the distance of 0.6 times the First Fresnel Zone clearance)and outside this range are conducted,with proposed future application directions based on these results.关键词
陆基船舶通信/船岸通信信道/绕射损耗模型/第一菲涅尔区Key words
land-based ship communication/ship-shore communication channel/diffraction loss model/First Fresnel Zone分类
信息技术与安全科学引用本文复制引用
徐贝柠,杨堃,鄢社锋,温程远,李新..陆基海洋通信船舶绕射损耗模型研究[J].无线电通信技术,2024,50(5):868-875,8.基金项目
国家自然科学基金专项项目(62341127) （62341127）
舟山市科技计划项目(2024C03007) Special Fund of the National Natural Science Foundation of China(62341127) （2024C03007）
Science and Technology Plan Project of Zhoushan(2024C03007) （2024C03007）
