Real-time imaging and recognition of moving objects by a pulsed "superscanning" locator (tomograph)

Vera Moiseevna Ginzburg

doi:10.1117/12.280811

28 July 1997 Real-time imaging and recognition of moving objects by a pulsed "superscanning" locator (tomograph)

Vera Moiseevna Ginzburg

Author Affiliations +

Proceedings Volume 3068, Signal Processing, Sensor Fusion, and Target Recognition VI; (1997) https://doi.org/10.1117/12.280811
Event: AeroSense '97, 1997, 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 antennas 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.

Citation Download Citation

Vera Moiseevna Ginzburg "Real-time imaging and recognition of moving objects by a pulsed "superscanning" locator (tomograph)", Proc. SPIE 3068, Signal Processing, Sensor Fusion, and Target Recognition VI, (28 July 1997); https://doi.org/10.1117/12.280811

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