ITU-R QUESTION 87-4/4-2007
移动卫星通信系统的传输特性

Transmission characteristics for a mobile-satellite communication system

ITU-R QUESTION 87-4/4-2007 发布历史

The ITU Radiocommunication Assembly considering a) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS; b) that other organizations offer or plan to offer international or domestic mobile-satellite services; c) that modulation techniques and systems should be robust under fading and shadowing conditions; d) that the efficiency of orbit-spectrum utilization in mobile-satellite systems will be determined in part by the technical characteristics employed, such as modulation methods and parameters, impact of frequency reuse techniques or the arrangement of radio-frequency carriers.

ITU-R QUESTION 87-4/4-2007由国际电信联盟 IX-ITU 发布于 2007-01-01。

ITU-R QUESTION 87-4/4-2007 在中国标准分类中归属于: M35 卫星通信设备。

ITU-R QUESTION 87-4/4-2007的历代版本如下：

• 2007年01月01日 ITU-R QUESTION 87-4/4-2007 移动卫星通信系统的传输特性

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标准号

ITU-R QUESTION 87-4/4-2007

发布日期

2007年01月01日

实施日期

废止日期

无

中国标准分类号

M35

发布单位

IX-ITU

适用范围

The ITU Radiocommunication Assembly considering a) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS; b) that other organizations offer or plan to offer international or domestic mobile-satellite services; c) that modulation techniques and systems should be robust under fading and shadowing conditions; d) that the efficiency of orbit-spectrum utilization in mobile-satellite systems will be determined in part by the technical characteristics employed, such as modulation methods and parameters, impact of frequency reuse techniques or the arrangement of radio-frequency carriers.