Author : Abdulzahraa Raheem, Azhr
Effect the Multiple Synthetic Aperture On Linear Spread Function Using Optical System Contain High Degrees Of Aberrations
journal of kerbala university,
Volume 8, Issue 2, Pages 334-347
In this research the linear spread function (LSF) have been studied to multiple synthetic circular aperture as instead of the usual circular aperture which used in optical systems or synthetic circular aperture .
The optical system which studied in different cases of effect focus error (W20=0.5λ,1λ,1.5λ) or spherical aberrations (W40=0.5λ,1λ) or coma aberrations (W31=0.5λ,1λ) with rotation angle (ψ=π/4,π/2 rad ) when number of sub apertures are (N=7) and distance between them (L=6) and the number of multiple sub apertures which subdivided from sub apertures are (M=4,6) and distance between them (M=3,5,7).
The results showed be the number of multiple sub apertures lead to increasing intensity of the line object image and maintain the general shape of the function regardless of the aberrations amount in the optical system in addition of increment of distance between them works to reduce the secondary peaks in the intensity distribution of linear object image