Imaging of the static and dynamic objects by pulse super-scanning locator (SSL) (tomograph) with resolution higher than by the Rayleigh criterion

Vera Moiseevna Ginzburg

doi:10.1117/12.354808

19 July 1999 Imaging of the static and dynamic objects by pulse super-scanning locator (SSL) (tomograph) with resolution higher than by the Rayleigh criterion

Vera Moiseevna Ginzburg

Author Affiliations +

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354808
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

Results of theoretical and experimental research to develop a locator (tomograph) with antenna performing beam scanning during both the emission and reception of pulses are presented'3. The locator operation is illustrated in Fig. 1 . The antenna having the angular beam width e0 emits pulses over the given surveying angle ® with duration t and repetition period T. Having emitted the pulse, the antenna rapidly regains the initial orientation and after a time delay of td resumes scanning over the sector ® according to the same (or different) scanning law. The emitted energy occupies in space a confmed section in the form of Archimedes (Fig. ic) spiral having the thickness c; c'r (e/®). The energy reflected from an object comes back in the shape of spherical layer. It can be totally received only when antenna beam is directed at the same angle as at the initial moment of signal transmission. As a result, the reflected signals are received from certain visibility layers VLs (Fig. ld) with the depth 6R= c-rI2 and repetition period AR =c(t + tr)12, where r is the reverse travel time of the beam forming the inclined visibility layers. By using different antenna scanning laws, a surveying net can be formed in space (see Fig. 1 e).

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Vera Moiseevna Ginzburg "Imaging of the static and dynamic objects by pulse super-scanning locator (SSL) (tomograph) with resolution higher than by the Rayleigh criterion", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354808

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