Maritime Wireless Channel Environment at VHF/UHF Bands and Its Space-Time Frequency Selectivity

WANG Feng; WU Wei; PENG Qian; ZHAO Er-hu; HE Xiao-xin

doi:10.3969/j.issn.0372-2112.2017.06.035

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Maritime Wireless Channel Environment at VHF/UHF Bands and Its Space-Time Frequency Selectivity

更新时间：2025-07-16

- Maritime Wireless Channel Environment at VHF/UHF Bands and Its Space-Time Frequency Selectivity
- Acta Electronica Sinica Vol. 45, Issue 6, Pages: 1523-1529(2017)
- 作者机构：
  
  1. 中国人民解放军 91655部队,北京,100036
  2. 中国科学院计算技术研究所专项技术研究中心,北京,100190
  3. 中国科学院软件研究所天基综合信息系统技术重点实验室,北京,100190
  4. 中国人民解放军 91655部队,北京,100036
  5. 中国科学院计算技术研究所专项技术研究中心,北京,100190
  6. 中国科学院软件研究所天基综合信息系统技术重点实验室,北京,100190
- 作者简介：
- 基金信息：
  
  National Science and Technology Major Project of the Ministry of Science and Technology (No.2014ZX03006003)
- DOI：10.3969/j.issn.0372-2112.2017.06.035
  CLC： TP92O451
- Published：2017
- 稿件说明：
移动端阅览
WANG Feng, WU Wei, PENG Qian, et al. Maritime Wireless Channel Environment at VHF/UHF Bands and Its Space-Time Frequency Selectivity[J]. Acta Electronica Sinica, 2017, 45(6): 1523-1529.
DOI：

WANG Feng, WU Wei, PENG Qian, et al. Maritime Wireless Channel Environment at VHF/UHF Bands and Its Space-Time Frequency Selectivity[J]. Acta Electronica Sinica, 2017, 45(6): 1523-1529. DOI： 10.3969/j.issn.0372-2112.2017.06.035.

摘要

已有的针对海上VHF/UHF（Very High Frequency/Vltra High Frquency）频段信道环境的研究，在电波传播特性和底噪特性方面缺少试验数据支撑.本文在VHF/UHF频段上做了一系列海上通信试验，基于试验数据，分析了传统电波传播模型对海上视距、超视距、视距超视距临界等传播路径的适用性.同时本文提出了空时二维海上频率选择性信道分析方法，从空间、时间二维视角下定量描述了海上无线信道演变现象，对空时频率迁移和空时频率衰变的概念做了定义.结论可用于海上电波传播建模和异常现象分析.

Abstract

The existing studies on maritime wireless channel environment at VHF/UHF(Very High Frequency/Vltra High Frquency) Bands lack experimental data in aspects of radio propagation and background noise.Therefore

we carried out a series of maritime wireless communication experiments to estimate adaptivity of the existing radio propagation models to within-the-horizon path

transhorizon path and just critical path.Moreover

we presented a method to analyse the maritime frequency-selective channel quantificationally from space-time perspective

and defined concepts of space-time frequency migration and declination.The results can be applied to maritime radio propagation modelling and abnormal phenomena analysing.

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