海事通信

船舶自动识别识别系统（AIS）是一种新型的助航系统和设备，在海事通信中将会发挥着巨大的作用。

The Automatic Identification System is a kind of new-type navaid and equipments , will play an important part in maritime communication .

多网融合海事通信网络及其关键设备

Maritime communication networks and key device based on multi-network convergence

OFDM技术也被期望应用于海事通信、军事通信等通信领域中。

The OFDM technology is also expected to be used in the fields such as the maritime communications and the military communications .

探讨长江海事通信多站点通信的组网方案

Talk about Yangtze River to explore the maritime communications of multi-site network communications program

海事通信卫星的出现和兴起曾使人们对短波通信的存在产生了质疑，但是随着卫星通信局限性的暴露和短波通信的固有特点使人们认识到短波通信存在的必要性。

The emergence and raise of the Inmarsat once let people have a question about the presence on the short-wave communication , but with the exposure of the limitation of the Inmarsat and the inherent characteristics of HF communication , people are convinced of the necessity of the HF communication .

基于国际海事卫星通信C系统的船岸通信软件平台设计

The Design of Communication Software-Interface Based on INMARSAT-C

在Visualc.NET开发平台上，研制了网络型GMDSS卫星通信系统模拟器软件，包括国际海事卫星通信系统B船站、C船站和F船站，模拟船对船、船对岸日常通信和遇险报警。

The paper developed the software of network distributed GMDSS satellite communication system simulator based on the Visual C # . NET platform , including the ship station of the INMARSAT B 、 C and F system .

为了降低功分器损耗，增大Q值，介质基板选取带状线结构，实验结果表明该功分器可应用于海事卫星通信系统中。

In order to reduce the losses and increase the Q , the paper select stripline structure to design power divider . The experimental results show that the power divider can be used in maritime satellite communication system .

本文简要介绍了国际海事卫星通信系统（INMARSAT），重点对该系统的移动数据通信业务及其应用进行了探讨。

This paper gives a brief introduction on the INMARSAT system with the mobile data communication service of the system and its application being discussed in detail .

本身装备有特殊的仪器的卫星。日本试验系统的海事卫星通信设备

Containing special instruments , Maritime Satellite Communication Equipment of KDD-Experimental System

该天线同样适用于海事卫星通信低速数据小型终端。

It also applies to small low speed inmarsat terminals .

一种用于海事卫星通信的微带阵列天线的设计

Design of microstrip array antenna for maritime satellite communication

中国海事搜救通信发展策略

Development Policy of SAR Communications in China

日本试验系统的海事卫星通信设备

Maritime Satellite Communication Equipment of KDD-Experimental System

该立体阵可以实现半空间辐射，且增益较高，适用于海事卫星通信系统。

The tridimensional array can realize half space radiation , with high gain , and it is suitable for the maritime satellite communications system .

该系统采用lnmarsat-C（国际海事卫星通信系统）作为水情信息传输通信组网方式，起点较高，适用于本流域特定的地理地形条件。

Inmarsat-C ( International maritime satellite communication system ) was used to transmit hydrologic data , which was fit for the geography and topography condition in this basin .

本文设计的天线采用右旋圆极化结构，将其应用到海事卫星通信中能抑制雨雾干扰和抗多径反射。

The designed antenna in this thesis is right-hand circular polarized , we apply it in the maritime satellite communications to inhibit the rain and fog interference and multi-path reflection .

射频接收单元是海事卫星通信移动终端的重要组成部分，其主要功能是把较高的载波频率变换到较低的中频。

RF receiver unit is an important part of the mobile terminals in maritime satellite communications , its main function is to transform the higher carrier frequency to a lower intermediate frequency .

该天线具有宽带宽、高增益和宽角圆极化等特点，在整个海事卫星通信工作频段能高质量、高效率地实现信号的发射与接收。

A good agreement between experiments and simulations is found The proposed antenna with wide bandwidth , high gain and wide-angle circular polarization characteristics can be high-quality , high efficiency to achieve signal transmission and reception during the working band .

最后通过对天津海事局海上通信管理信息系统的开发，体现了B／S模式的优势，同时实现了天津海事局海上通信管理信息系统。

The advantages of B / S model are displayed well in developing the marine communication management information system of Tianjin bureau o The whole system has been realized completely .

国际海事组织无线电通信搜救分委会第11次会议概况

General introduction of the 11th Session of IMO COMSAR Sub-Committee

基于二重选择性分集的海事短波数字通信性能分析

Performance of Maritime Short-Wave Digital Communication Based on Two-Branch Selective Diversity Technology