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.

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国际移动卫星通信系统为用户提供广泛的和日益增加的语音频带数据和传真业务。

The Inmarst system offers the user a large and growing range of voice band data and facsimile services.

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介绍了第三代移动通信中的三个主要的标准和它们在国际国内标准化组织内的标准化情况。

This paper introduces the three main standards of the third mobile telecommunication, and their progress in the international and native standard organization.

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