Acquisition of noise-free and noisy signal: effect of different staring focal-plane-array pixel geometry

Author

Iftekharuddin, K.M. ; Karim, M.A.

Author_Institution

Dept. of Electr. Eng., Dayton Univ., OH, USA

fYear

1993

fDate

24-28 May 1993

Firstpage

1148

Abstract

Spatial averaging technique has been used to compare the signal acquisition performance of hexagonally sampled arrays with rectangular, hexagonal and rhombic pixel shapes of equivalent area. In noise-free case, a modulation transfer function (MTF) value, which is almost similar to the MTF of the rectangular pixel shape, is obtained for the rhombic pixel shape. However, in detecting noisy signal, the probability density function (pdf) of the detected signal of the rhombic pixel geometry lies in between that of the other two pixel shapes

Keywords

digital simulation; electronic engineering computing; image processing; image sensors; optical transfer function; probability; random noise; signal detection; MTF; hexagonal pixel shapes; hexagonally sampled arrays; modulation transfer function; noise-free signal; noisy signal; probability density function; rectangular pixel shapes; rhombic pixel shapes; signal acquisition performance; spatial averaging; staring focal-plane-array pixel geometry; Detectors; Frequency domain analysis; Lattices; Noise shaping; Optical devices; Optical noise; Optical sensors; Sampling methods; Sensor arrays; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1993. NAECON 1993., Proceedings of the IEEE 1993 National

Conference_Location

Dayton, OH

Print_ISBN

0-7803-1295-3

Type

conf

DOI

10.1109/NAECON.1993.290781

Filename

290781