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Proceedings Paper

Simulations Of Various Centroiding Algorithms
Author(s): Scott E. Bulau
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Paper Abstract

Evaluated are four different centroiding algorithms for use in the Kitt Peak National Observatory Photon Counting Array (KPCA). Computer simulations are performed on each of the four different methods. Variations are applied in the simulations and a decision is formed resulting in the method configured in hardware. The algorithm needs to control the placement of the center of a photon splash to 1/8 + 1/8 of an array element. The overall photon splash will acquire an approximate spatial area of 5 x 5 array elements. Restricted by the need to centroid in real-time, the algorithm must handle incoming array data at a rate of 20MHz. Both 3 x 3 and 5 x 5 spatial algorithms are considered. Simulation results of the selected algorithm are confirmed in the centroider hardware, giving the resolution required. Based on the simulations evaluated, new real-time configurations are being con-sidered for future implementation.

Paper Details

Date Published: 13 October 1986
PDF: 8 pages
Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); doi: 10.1117/12.968147
Show Author Affiliations
Scott E. Bulau, National Optical Astronomy Observatories (United States)


Published in SPIE Proceedings Vol. 0627:
Instrumentation in Astronomy VI
David L. Crawford, Editor(s)

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