In the light of the latest criteria stipulated by the IMO for GMDSS, this article analyses the pre - emption system of Inmarsat - F in control mechanisms, messages and processes.

• 此文围绕IMO对GMDSS的新要求,从控制机制、控制信息及控制过程三个方面对In-marsat-F系统中的优先权控制进行了分析。