SAR image reconstruction using a Kalman filter

This paper proposes a new image reconstructing algorithm for a synthetic aperture radar (SAR). For fast computation, the proposed method uses a Kalman filter in the time domain while many conventional methods use frequency domain procedures. This method is applicable to real‐time imagery because images are recursively reconstructed. Through a reconstruction simulation by pseudo data, it is shown that a superior reconstructed image is obtained by the proposed method as compared to the conventional method.