“导航战”是美国军方最近秘密进行的一项计划,它是针对全球定位系统(GPS)在军事应用中可能遭遇的测量与干扰相对抗的局面而展开的有关战术及技术措施的研究。本文将介绍“导航战”的概念、目标及其研究背景,描述冲击美国军方 GPS 保护政策的几项新技术,以及军用 GPS 的发展前景。美国正在开展“导航战”研究1995年美国防部指定罗克韦尔公司牵头,成立一个由几家公司参加的研究小组,开始一项为期13个月的有关 Navigational warfare is a secret recent project by the U.S. military to study tactical and technical measures that address the possible countermeasure of global positioning system (GPS) in military applications against interference. This article introduces the concept, objectives and research background of “navigational warfare”, describes several new technologies that impact the US military’s GPS protection policy, and the development prospects of military GPS. U.S. Conducting Navigational War Study In 1995, the U.S. Department of Defense designated Rockwell Corporation to lead a research group of several companies to start a 13-month