Real-time joint transform correlator using speckle clipping technique

Akifumi Ogiwara; Hiroyuki Sakai; Takeshi Utakouji; Junji Ohtsubo

doi:10.1117/12.34790

1 July 1990 Real-time joint transform correlator using speckle clipping technique

Akifumi Ogiwara, Hiroyuki Sakai, Takeshi Utakouji, Junji Ohtsubo

Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.34790
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany

Abstract

In this paper , we real i zed a real -time joint transform correlator .sed on speckle clipping technique using Optic RAM detector and liquid crystal television (LCTV) panels. A basic description of this application is that a time dependent speckle intensity is detected by an Optic RAM detector by which the binarization of 2-dimensional speckle intensity is performed for an arbitrary threshold level of the intensity. Then, the clipped signa] is sent to a LCFV under the control of a microcomiter and, finally, the correlation function of the clipped speckle intensities is obtained based on the joint transfonn correlator (JTC).

Citation Download Citation

Akifumi Ogiwara, Hiroyuki Sakai, Takeshi Utakouji, and Junji Ohtsubo "Real-time joint transform correlator using speckle clipping technique", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); https://doi.org/10.1117/12.34790

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