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Proceedings Paper

Point Source Location Sensitivity Analysis
Author(s): J. Allen Cox
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Paper Abstract

This paper presents the results of an analysis of point source location accuracy and sensitivity as a function of focal plane geometry, optical blur spot, and location algorithm. Five specific blur spots are treated: gaussian, diffraction-limited circular aperture with and without central obscuration (obscured and clear bessinc, respectively), diffraction-limited rectangular aperture, and a pill box distribution. For each blur spot, location accuracies are calculated for square, rectangular, and hexagonal detector shapes of equal area. The rectangular detectors are arranged on a hexagonal lattice. The two location algorithms consist of standard and generalized centroid techniques. Hexagonal detector arrays are shown to give the best performance under a wide range of conditions.

Paper Details

Date Published: 6 November 1986
PDF: 8 pages
Proc. SPIE 0686, Infrared Detectors, Sensors, and Focal Plane Arrays, (6 November 1986); doi: 10.1117/12.936535
Show Author Affiliations
J. Allen Cox, Honeywell Systems and Research Center (United States)


Published in SPIE Proceedings Vol. 0686:
Infrared Detectors, Sensors, and Focal Plane Arrays
Hideyoshi Nakamura, Editor(s)

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