概　　述　　美军对敌我识别系统的研究 ,始于 2 0世纪 4 0年代的二次世界大战期间。而对单兵敌我识别系统的研究 ,却始于 2 0世纪 90年代中期。 1991年海湾战争期间 ,美军被友军误伤的概率高达 2 5 % ,令美军方上层大为震惊。绝大多数的误伤事件是由于目标识别有误及协调作战 An overview of the U.S. military’s research on the identification system between the enemy and ourselves began in the period of World War Two in the 2040s. However, the research on the identification system of individual enemy and foe I started in the mid-1990s. During the Gulf War in 1991, the chance of the U.S. military being mistakenly injured by friendly forces was as high as 25%, greatly shocking the upper-class U.S. military. The vast majority of accidental injuries are due to incorrect target identification and coordinated operations