6 November 1986 Point Source Location Sensitivity Analysis
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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.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Allen Cox, J. Allen Cox, } "Point Source Location Sensitivity Analysis", Proc. SPIE 0686, Infrared Detectors, Sensors, and Focal Plane Arrays, (6 November 1986); doi: 10.1117/12.936535; https://doi.org/10.1117/12.936535
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