Title :
Spatial replication in back-propagated acoustic holograms
Author :
Schueler, Carl ; Lee, Hua ; Wade, Glen
Author_Institution :
Santa Barbara Research Center, Goleta, CA
Abstract :
Acoustic holograms may be reconstructed digitally by the method of backward wave propagation. The images may be distorted by spatial replication, caused by the use of two discrete Fourier transforms (DFT´s) in sequence to produce the image. This phenomenon is illustrated and explained, as is a method to prevent the distortion.
Keywords :
Automatic control; Automatic testing; Computer aided software engineering; Control systems; Polynomials; Stability criteria; Symmetric matrices;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1981.12207
