Abstract
Monitoring the Doppler history of an elementary target, such as a line scatterer traversing a coherent illuminating beam, and electro-optical processing of this Doppler information, permits reconstruction of a visible image of the line scatterer. A tutorial two-dimensional analysis assuming a line scatterer is presented in conjunction with a confirming optical experiment. These show how a single homodyne or heterodyne receiver suffices to retrieve those features of an extended object that lie parallel to its direction of motion across the beam. The possibility of long-range imaging by use of target-synthesized apertures, especially at microwave frequencies, is also discussed on the basis of the results of this paper.
© 1973 Optical Society of America
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