隐身(避免被雷达探测)被认为是八十年代军用关键技术之一,在这方面已投入了大量的防御经费。隐身之所以继续用来广泛覆盖介体,一方面是因为“看不见的”目标的概念引起人们假想的兴趣,此外还因为这一技术的应用通常会形成十分引人注目的设计方案。就保密级别而论,该领域通常是高度机密的。然而,基本原理,特别是关于雷达频段的那些原理,都是确定了的,本文将对此作一介绍。如上所述,虽然隐身的通用概念是构成“看不见的”目标,但实际目的是要获得“低的可观察性”。由于苏联战斗机和地面雷达数量和容量的增加所造成的威胁不断增长,这一技 Stealth (to avoid being detected by radar) is considered as one of the key military technologies of the 1980s, and a great deal of defense funding has been invested in this area. The reason why stealth continues to be used to broadly cover mediators is partly because of the notion of “invisible” arousing people’s hypothetical interest and in addition to the fact that the application of this technique often leads to very compelling designs. In terms of the level of confidentiality, this area is usually highly confidential. However, the rationale, especially those concerning the radar band, is well established and will be introduced in this article. As mentioned above, although the common concept of stealth constitutes an “invisible” goal, the actual purpose is to obtain “low observability.” Due to the growing threat posed by the increase in the number and capacity of Soviet fighters and ground-based radars, this technology