Lensless matched filter: operating principle, sensitivity to spectrum shift, and third-order holographic aberrations
Applied Optics, Vol. 15, Issue 11, pp. 2830-2839 (1976)
http://dx.doi.org/10.1364/AO.15.002830
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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.
Citation
Marc J. Bage and Michael P. Beddoes, "Lensless matched filter: operating principle, sensitivity to spectrum shift, and third-order holographic aberrations," Appl. Opt. 15, 2830-2839 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-11-2830
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