As a necessary ship borne navigation electronic equipment, marine radar is important for ship safety. In this paper, the technology status of foreign marine radars is reviewed, followed by the discussion of their development trends. By applying some new radar technologies into marine radar, both the reliabili-ty of the system and the target detection performance in rain or sea clutter can be greatly enhanced. Com-pared with the existing magnetron pulse radar systems, marine radar will be developed into a solid-state, multi-band and multi-functional ship borne navigation system.%航海雷达是船舶航行必备的电子设备，其性能直接关系到船舶的航行安全。对国外航海雷达的技术现状及发展情况进行了综述，并对其发展趋势展开了讨论。通过运用多种新体制、新技术，能够有效提升雷达设备可靠性，增强其在雨雪杂波、海杂波下的目标发现能力。航海雷达将会从现有的单一磁控管脉冲体制，发展为固态化、多频段配合使用的多功能航海雷达系统。
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