量子关联成像是一种通过测量光场强度和相位涨落，利用探测光场与调制光场的关联性进行图像重构的新型成像方式，具有抗干扰、超灵敏、超衍射极限等优点，可实现超高灵敏的时、空、频一体化成像。对于星载量子关联成像探测，卫星与目标相对运动导致探测光场与调制光场无法精确同步，星地链路中大气湍流导致光场相位的涨落，是实现高灵敏成像探测面临的两个关键科学问题。本项目提出一种基于光场追踪调控的计算关联成像方法，以实现星载超灵敏成像。首先分析星地链路中大气湍流对量子关联成像的影响，提出基于随机相位屏的光场调控方法，以补偿大气湍流影响，提高成像质量；其次，研究一种高动态下的星载光场追踪成像重构算法，以提升调制光场和探测信号的关联度，实现超灵敏成像；最后，建立计算关联成像实验系统，对所提出的成像方法进行验证。本项目研究为推动新型成像探测载荷的应用奠定基础，对国家安全、资源探测等重大国民经济和国防建设具有重要意义。

Ghost imaging is a novel imaging scheme that uses the correlation between the intensity of detected light field and the modulated signal to reconstruct the image by measuring the fluctuations of the light field intensity and phase, brings the advantages of anti-interference, ultra-sensitive, ultra-diffraction limit and so on, which makes the integrated ultra-sensitive observer of space-time-frequency for earth observation. For ghost imaging, the movement of the satellite platform will brings the difficulty in precisely synchronizing between the detected light field and the modulated light field, in addition, the atmospheric turbulence in the satellite-earth path will brings the fluctuations of the light field phase. These two problems are critical for satellite-borne ghost imaging. This proposal concentrates on the research works of a computational correlative imaging scheme on the basis of the tracking and modulation of light field, aims to realize satellite-borne ultra-sensitive imaging. Initially, the influences on ghost imaging from the atmospheric turbulence in the satellite-earth path will be analyzed, a light-field modulation method based on the random phase screen will be studied to reduce the influence of atmospheric turbulence and then improve the imaging quality. Then, an image reconstruction method based on the tracking of light field in the high dynamic satellite onboard environment will be studied to improve the correlation between structural light-field and the detected light-field, and then realize ultra-sensitive ghost imaging. Finally, a computational ghost imaging experimental system will be conducted to demonstrate the proposed method. Above researches will provide a technical foundation for the development of novel imaging payload and it is of great significance to national security, resource detection and other major national economy and national defense fields.