Experimental demonstration of a binary single-lens joint transform correlator using chirp-modulated inputs

Thomas J. Grycewicz

doi:10.1117/1.601251

1 March 1997 Experimental demonstration of a binary single-lens joint transform correlator using chirp-modulated inputs

Thomas J. Grycewicz

Optical Engineering, Vol. 36, Issue 3, (March 1997). https://doi.org/10.1117/1.601251

This paper introduces the single-lens joint transform correlator (SLJTC). The SLJTC is a two-stage processor. The first stage computes the chirp-modulated joint power spectrum. The chirp-encoded joint power spectrum may be viewed as containing an amplitude-encoded lens function or Fresnel zone plate. The correlation output is in the focal plane of this zone plate. As in the chirp-modulated joint transform correlator (JTC), the output contains a single correlation peak. The SLJTC has been experimentally demonstrated with a peak-to-noise ratio (PNR) of 17.1 dB. The same chirp-encoded joint power spectrum used in the second stage of a binary chirp-modulated JTC resulted in 6.5-dB-poorer PNR performance.

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Thomas J. Grycewicz "Experimental demonstration of a binary single-lens joint transform correlator using chirp-modulated inputs," Optical Engineering 36(3), (1 March 1997). https://doi.org/10.1117/1.601251

Published: 1 March 1997

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