Imaging of static and dynamic objects by pulsed superscanning locator (tomograph) with resolution higher than by the Rayleigh criterion

Vera Moiseevna Ginzburg

doi:10.1117/12.321813

15 September 1998 Imaging of static and dynamic objects by pulsed superscanning locator (tomograph) with resolution higher than by the Rayleigh criterion

Vera Moiseevna Ginzburg

Author Affiliations +

Proceedings Volume 3370, Algorithms for Synthetic Aperture Radar Imagery V; (1998) https://doi.org/10.1117/12.321813
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Results of theoretical and experimental research to develop a locator with antennas performing beam scanning during both the emission and reception of pulses are presented. The reflected signals are received within discrete `visibility' layers formed due to beam scanning during reception. The locator is shown to have a number of advantages in comparison with the conventional locator. The known distribution of visibility layers in space allows one: to create adaptive systems ensuring reception of the required information with the minimum energy expenses; to attain `superresolution' of objects (at distances smaller, than required by the Rayleigh criterion); to improve noise immunity of the locator. It is demonstrated that a `quasi- holographic' data-processing system can be developed, similar to the synthesized antenna aperture system proposed in the 50s by Emmett Leath. An ultrasonic version of the `superscanning' locator is described. The experimental results totally confirm the theoretical predictions.

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Vera Moiseevna Ginzburg "Imaging of static and dynamic objects by pulsed superscanning locator (tomograph) with resolution higher than by the Rayleigh criterion", Proc. SPIE 3370, Algorithms for Synthetic Aperture Radar Imagery V, (15 September 1998); https://doi.org/10.1117/12.321813

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