Abstract

The principle of source and receiver scanning is well established, both in microwave and acoustic imaging systems. In microwave systems, where the scan velocity is very slow compared to the velocity of propagation of the electromagnetic waves, motion of the source is inconsequential. In acoustic systems, the scan velocity can be an appreciable fraction of the sound-propagation velocity. This paper analyzes the effect on the image, when a hologram is made by scanning the source and receiver at relatively high velocities. The first-order analysis shows that the image undergoes a rotation and a distortion.

© 1970 Optical Society of America

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