中高轨空间是世界各国导航卫星、通讯卫星、军事侦察卫星、地球资源卫星和地球同步卫星密布的轨道区间，对中高轨空间目标的观测也是地基光学天文望远镜的优势所在。随着城市建设的发展，靠近都市地区的雾霾、夜天光影响越来越大，对光学观测造成了严重的影响，如何降低这些影响并可靠识别空间目标成为当前科研人员迫切需要解决的问题。本项目针对上海天文台1.56m光学望远镜在新时期环境条件下使用中的不足，从光学信息多参数解耦、偏振光谱探测和望远镜图像增强角度出发，提出一种高灵敏度、背照式、科学级CMOS探测器构成的空间目标探测系统，将光强信息、光谱信息和偏振信息集成于一体实现一种三合一多特征参数的空间目标共光路探测技术，实现特定目标区域中选定目标的多特征参数提取，为我国空间目标的特征识别、空间目标监测网的完善和空间目标预警系统的建立提供充分的技术支持。

The medium-to-high orbit space is the orbital range where the navigation satellites, communication satellites, military reconnaissance satellites, earth resource satellites, and geosynchronous satellites of various countries in the world distribute closely. The ground-based optical telescope has an advantage on observing the medium-to-high space targets. With the development of urban construction, the haze and the night sky light have more serious influence close to the urban area, which have a serious impact on optical observations. Therefore, how to reduce these impacts, and reliably identify space targets have become the urgent problems that researchers need to solve. In this project, it addresses the insufficiency that the 1.56m optical telescope in Shanghai Astronomical Observatory cannot be effectively used in the environmental conditions during the new period, and starts from the multi-parameter decoupling of optical information, polarization spectrum detection and telescope image enhancement, to integrate the light intensity information, spectral information, and polarization information into one, so as to realize the three-in-one targeted space common optical path detection technology with multi-feature parameters, and realize the extraction of multiple feature parameters for selected targets in a specific target area, thus providing the adequate technical support for the characteristics identification of space targets, improvement of the space target monitoring networks, and establishment of space target early warning systems in China.