METHOD FOR ABERRATION-FREE OPTICAL REPRODUCTION OF HIGHLY RESOLVED SONAR OR RADAR MAPS

摘要

A method for aberration-free optical recording of highly resolved sonar or radar maps in which a series of one-dimensional holograms is recorded as a function of the receiving time and coherently reconstructed with the help of pulsed sonar or radar. The method is particularly characterized in that a one-dimensional doubling of the transmission function of the holograms is effected through the use of a filter within the beam path to thereby simultaneously reconstruct the entire sonar or radar map in such a way that both the image distance and the image size are independent from distance.