Imaging in radar holography using linear receiving array

This paper discusses holographic recording and reconstruction by means of a bistatic radar employing a linear receiving array which is considered to be a synthetic-aperture radar. A hologram is obtained by a linear relative movement between a target and a linear receiving array. This type of hologram differs in principle from the conventional hologram obtained by planar scanning of a target. For correct reconstruction of an image, the incident wave must be either ellipsoidal or cylindrical. In this paper the distortion and aberration of reconstructed images are discussed and the experiment on the holographic recording and reconstruction by a millimeter-wave radar employing a linear receiving array is described.