Analytical solution of the envelope extraction problem using lensless technology.

Autor: Schreifel, I. S., Marchuk, V. I., Mikhailov, A. B., Okorochkov, A. I.
Předmět:
Zdroj: AIP Conference Proceedings; 2023, Vol. 2700 Issue 1, p1-9, 9p
Abstrakt: This paper presents the results of the analytical solution of the envelope extraction problem based on the use of the Hilbert transform to calculate the conjugate function concerning the known envelope at the output of a diffraction grating in a lensless camera. For simplicity, diffractions grating elements a limited number is assumed and the spectral density envelope at the sensor a 1D analysis is considered to determine the Hilbert-conjugate signal with the envelope subsequent calculation at the sensor output. The obtained results show that the found analytical expressions provide the Hilbert conjugate signal calculation with high accuracy. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index