A novel approach of high spatial-resolution Microwave Staring Imaging

In Microwave Staring Imaging, radar is located in a stationary platform and imaging the fixed area. It can realize continuous gaze and imaging of a specific area. The spatial-resolution of the traditional staring imaging, ie. the real-aperture imaging is limited by the actual antenna array aperture. A novel high spatial-resolution microwave staring imaging based on the temporal-spatial stochastic radiation field is proposed in this paper. Under the temporal-spatial stochastic radiation field, more effective observation samples about the target information can be obtained. Correlated imaging process is essential to achieve the target recovery results by combining the received echo signal and the temporal-spatial stochastic radiation field. By the temporal-spatial stochastic radiation field and the corresponding correlated imaging process, the distinguishment of the targets within the beam coverage is achieved, which can break through the limitation of the actual antenna array aperture. Numerical simulations verify the effectiveness of the proposed approach and its analysis.