为实现舰载红外警戒系统对海空背景下红外弱点目标的检测，根据目标识别系统的组成及目标检测识别信息处理流程，研究了远距离弱小目标的检测识别算法。结合形态学的方法给出一种目标检测算法，该算法可以有效地消除云层、海浪、海天线以及传感器本身引入的杂波和噪声干扰，仿真结果表明采用本文提出的算法有利于对目标的进一步识别，提高舰载红外警戒系统的目标检测性能。

To detect weak point target under the background of sky and sea by shipboard infrared surveillance system, the detection algorithm of far and dim target was mainly studied based on the constitution of the target recognition system and target information processing flow of detection and recognition. A new method of target detection was presented combined with mathematical morphology. The method can be used to effectively eliminate noise caused by cloud, wave and sensor.The results of simulation show that the arithmetic presented in this paper is in favor of further target recognition and meets the needs of shipboard infrared surveillance system