Point Source Location Sensitivity Analysis

J. Allen Cox

doi:10.1117/12.936535

6 November 1986 Point Source Location Sensitivity Analysis

J. Allen Cox

Proceedings Volume 0686, Infrared Detectors, Sensors, and Focal Plane Arrays; (1986) https://doi.org/10.1117/12.936535
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

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.

Citation Download Citation

J. Allen Cox "Point Source Location Sensitivity Analysis", Proc. SPIE 0686, Infrared Detectors, Sensors, and Focal Plane Arrays, (6 November 1986); https://doi.org/10.1117/12.936535

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