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the interference quantum radar technology is used to optimize the design of remote air target detection system from both hardware and software aspects. The interference quantum radar detector is added, the radar signal processing and imaging device is modified, and the hardware system is optimized. The interferometric quantum radar technology is used to generate the air target radar image, and the initial radar image is preprocessed through clutter suppression, image enhancement and other steps. Extract the contour features of the radar image, measure the distance of the air target, calculate the geometric parameters such as the size and position of the air target and the moving speed parameters, and finally determine whether there is an air target in the area through feature matching, and output the air target detection results. Through the system test experiment, it is concluded that, compared with the traditional detection system, the distance, size and moving speed detection errors of the optimized design system are reduced by 5.15m, 4.85m2 and 4.15m/s respectively, and the detection range of aerial targets is expanded.