Abstract
Fig. 1. Side-looking radar records, like holograms, consist of many superimposed photographically recorded zone plates from which the original Scene is reconstructed. In this radar record, an isolated reflecting point has generated, (near the bottom of the blank area) an easily recognized onedimensional mne plate which, with monochromatic processing, will yield azimuth information wth a precision corresponding to a tiny fraction of the zone-plate length. If a long radar pulse was similarly amplitude-modulated and the echoes similarly photographically recorded, then optical processing procedures could similarly compress tremendously the pulse length, thus achieving high range resolution even with long pulxs.
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