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系统的背景。在当前的交通运作过程当中,对移动目标的监控和跟踪是通过三个途径,一个是GPS,还有集群,还有GSM。这一些存在问题是什么,在跨国、跨省区作业的时候,这一些手段不能够进行移动目标的监控,这给移动目标监控的方面带来了一些问题。根据这一种情况,自从911事件之后,国际上对于船舶的监控和移动目标的监控提出了很高的要求。IMO和INMARSAT提出了很多的措施。在这样的情况下,为了迎
System background. In the current process of traffic operation, the monitoring and tracking of moving targets is through three channels, one is GPS, there are clusters, there are GSM. Some of these problems exist, and these measures can not monitor the moving targets when operating across borders and across provinces. This poses some problems for the monitoring of moving targets. According to this situation, since the Sept. 11 attacks, there has been a high international demand for the monitoring of ships and the monitoring of moving targets. IMO and INMARSAT put forward many measures. In such circumstances, in order to welcome