本专利提供一种用于探测红外“场景”或场中的点源的预处理器,该预处理器基本上由一个输入接口、一个横向滤波器、一个自适应阈值器件、一个资源组件和一个输出接口组成,其中的自适应阈值器件包括一个二点内部存储器和一个算法处理器。该系统可以用于红外波段的监视,特别是用于红外舰船、飞机、直升机、运输工具、装甲车、飞机场的信号发射,以及用于任何需要 This patent provides a preprocessor for detecting a point source in an infrared “scene” or field that essentially consists of an input interface, a transversal filter, an adaptive threshold device, a resource component and a Output interface, wherein the adaptive threshold device comprises a two-point internal memory and an algorithm processor. The system can be used for the monitoring of the infrared band, in particular for the signal transmission of infrared ships, aircraft, helicopters, vehicles, armored vehicles, airfields and for any need