Dim Target Detection in Synthetic Aperture Radiometer Image Based on Wave Atom Transform

To solve the impact from the oscillation at the edge of the target and background in synthetic aperture radiometer image, the characteristics of synthetic aperture radiation image has been analyzed, and an algorithms of synthetic aperture radiation image background suppression and target detection based on wave atom transform has been proposed. The simulation and experimental results show that the method can efficiently detect the small target in synthetic aperture radiometer image.