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Lensless matched filter: operating principle, sensitivity to spectrum shift, and third-order holographic aberrations

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Abstract

Synthesizing a Fresnel zone plate inside a Vander Lugt matched filter (MF) results in a lensless matched filter (LLMF) that is space-invariant from the point of view of vignetting apertures. In practice the unfocused output components of the LLMF do not degrade its SNR. A LLMF displacement appears as a combined shift of its filter and lens components. The third-order holographic aberrations of the MF and LLMF, and particularly their root-mean-square astigmatisms, are compared via computer-generated plots.

© 1976 Optical Society of America

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Corrections

Marc J. Bage and Michael P. Beddoes, "Lensless matched filter: operating principle, sensitivity to spectrum shift, and third-order holographic aberrations; erratum," Appl. Opt. 16, 1143-1143 (1977)
https://opg.optica.org/ao/abstract.cfm?uri=ao-16-5-1143

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