| || Modulation of Rectangular and Triangular Bar targets by Optical Systems using Hamming Filters
Author : Reddy, G.R.C. ;Goud, S.L.;Srinivas, Ch.V.;Rao, B. Rama Mohana
Source : Defence Science Journal ; Vol:47(2) ; 1997 ; pp 217-223
Subject : 535 Optics
Keywords : Apodisation filters ;Image modulation;Triangular bar targets;Incoherent imaging systems
Abstract : The modulation in incoherent imaging systems for rectangular and triangular bar targets has been investigated using Harming apodisation filters. The results of contrast Md cutoff frequency responses have been reported with the help of certain profiles. Different apodisation parameters with different values have been used for the calculation of image modulation.