本文讨论了在未来的红外导弹中焦面凝视阵列的应用。回顾了系统灵敏度的传统理论,并介绍了更适合焦面凝视阵列的另一种技术。讨论了在确定实际传感器能实现的性能时系统参数的重要性,并说明了用来确定系统性能的一些方法。本文的主要信息是在评价导弹制导系统中新的焦面阵列技术的有效性时必须小心从事。如果了解这些器件在导弹环境中的实际限制,那么原先希望的小型、高性能、低成本寻的器系统在下一代导弹中可能得以实现。 This article discusses the use of focal plane arrays in future infrared missiles. The traditional theory of system sensitivity is reviewed and another technique that is more suitable for focal plane gaze arrays is introduced. Discusses the importance of system parameters in determining the performance that an actual sensor can achieve and explains some of the methods used to determine system performance. The main message in this paper is that care must be taken in evaluating the effectiveness of the new focal plane array technology in missile guidance systems. The small, high-performance, low-cost finder system originally hoped for would probably be realized in the next generation of missiles if one knew the actual limitations of these devices in the missile environment.