摘要
GPS可能在非常时期被关闭或限制使用,也存在着被攻击的潜在可能,因此,用于船舶定位导航上也存在着一些不可靠性和不可用性,就如何加强船舶的定位导航安全提出了建议。
US may shut down GPS system, or minimize the signals and introduce errors to accuracy on this system for the security of US. So that GPS cannot serve as the sole source for ship抯 positioning and navigation. This paper forwards some suggestions on safety of positioning and navigation.
出处
《世界海运》
2003年第3期48-49,共2页
World Shipping
