中长波双波段红外成像技术能同时获得中波、长波两个大气窗口的红外辐射信息，同时具有两种单波段成像技术的优点。通过优势互补，中长波双波段红外成像技术能够提高装备对各种复杂环境条件的适应能力，提高各类作战任务的成功率。在过去二十几年中，欧美主要国家实现了从双探测器双波段成像到单探测器双波段成像的发展及批量装备，目前正向更高分辨率、更远作用距离的方向发展。中长波双波段红外成像技术主要用于提高各类主战装备对不同的作战环境的适应能力以及各类搜索跟踪识别系统对目标的探测识别成功率。此外，可以通过中长波双波段红外成像技术获取目标的温度、光谱特性等特征信息，可用于反干扰、反伪装。

Depending on the capability of detecting scene radiance in both MWIR(middle wave infrared radiation) and LWIR(long wave infrared radiation) spectral bands, the dual-band IR(infrared radiation) technology ensures the use of two single-band sensors. Using the spectral advantages associated with the use of two single-band sensors, the dual-band IR technology can improve all-weather performance and the probability of mission success in almost all cases. Over the past 20 years, main occident have developed from dual-camera dual-band to single-camera dual-band infrared camera systems and equipped military, with higher resolution and greater range being the current requirements. At present, the dual-band IR technology mainly has three different applications. First, it improves the adaptability to different operational environments. Second, it improves the target detection and recognition probability of automatic systems. Third, through deep data processing, it is used to obtain more information about the target such as temperature and spectral feature, which helps prevent jammer and camouflage.