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近年来,许多国家海军对于改善舰艇的雷达有效反射面特性、红外特性、声学特性、磁特性、水下传输信号特性以及尾迹等信号特性给予了极大的重视,却常忽略了最为基本的视觉隐身性的研究。在冷战结束以来的十多年里,海上作战常常在处于军事不平衡状态的双方之间发生。拥有强大海军的一方,其作战对象可能是现代化程度不高的常规兵力或恐怖主义者。虽然后者没有高性能雷达等设备,但可以选定一些观察人员隐蔽起来,或者利用在近海水域活动的小型渔船和近岸高速攻击艇,或利用岸基观察站,或利用海上轻型巡逻飞机
In recent years, many national navies have given great importance to improving the effective reflector surface characteristics, infrared characteristics, acoustic characteristics, magnetic characteristics, underwater transmission signal characteristics and wake characteristics of naval ships, but often neglect the most basic visual Research on stealth. For more than a decade since the end of the cold war, maritime operations have often taken place between the two sides in a military imbalance. The party with a strong naval force may be a regular force or terrorist who is not modernized. Although the latter did not have such equipment as high-performance radar, some observers could be selected to hide or use small fishing vessels and coastal high-speed attack boats operating in the open sea or using shore-based observation stations or using light patrol aircraft at sea