摘要
甚高频(VHF)作为当前船舶航行、调度指挥、应急救援的国际通用通讯手段.近年来,VHF在沿海地区取得了较好的覆盖及应用效果,但在山区峡谷内河航道组建VHF通信网一直是困扰技术人员的难题,光靠常规的站点选址、建设密度、天线高度、覆盖范围以及电台功率的配置、天线规格选择等技术要素难以实现高效、稳定的覆盖要求.为了解决山区峡谷内河航道组网的难题,通过分析目前存在的问题及相关影响因数,文章提出了采取全向天线+定向天线+船载天线相结合的设计方案,该方案充分利用了沿线运营商高位通信基站及航道工作船资源,提高山区峡谷内河航道VHF覆盖范围和通信质量,确保航行安全.
Abstract
Very High Frequency(VHF)is currently an internationally recognized communica-tion method for ship navigation,dispatch and command,and emergency rescue.In recent years,VHF has achieved good coverage and application effects in coastal areas.However,estab-lishing a VHF communication network in river channels within mountainous canyons has al-ways been a challenge for technical personnel.It is difficult to achieve efficient and stable cov-erage requirements solely based on conventional site selection,construction density,antenna height,coverage range,radio power configuration,antenna specification selection,and other technologies.Therefore,in order to solve the problem of networking river channels in moun-tainous canyons,this article proposes a design scheme that combines omnidirectional antenna,directional antenna,and ship borne antenna by analyzing the current problems and related influ-encing factors.This plan fully utilizes the resources of high-level communication base stations and channel working ships of operators along the route,effectively improving the VHF cover-age and communication quality of river channels in mountainous canyons,and ensuring the safety of ship navigation.
基金项目
云南省数字交通重点实验室(202205AG070008)
NETL
NSTL
万方数据