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Proceedings Paper

Signal Processing And Compensation Electronics For Junction Field-Effect Transistor (JFET) Focal Plane Arrays
Author(s): Karl R. Wittig
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Paper Abstract

A signal processing system has been designed and constructed for a pyroelectric infrared area detector which uses a matrix-addressable JFET array for readout and for on-focal plane preamplification. The system compensates for all offset and gain nonuniformities in and after the array. Both compensations are performed in real time at standard television rates, so that changes in the response characteristics of the array are automatically corrected for. Two-point compensation is achieved without the need for two separate temperature references. This paper describes the focal plane circuitry used to read out the array, the offset and gain compensation algorithms, the architecture of the signal processor, and the system hardware.

Paper Details

Date Published: 30 June 1982
PDF: 13 pages
Proc. SPIE 0311, Mosaic Focal Plane Methodologies II, (30 June 1982); doi: 10.1117/12.932809
Show Author Affiliations
Karl R. Wittig, Philips Laboratories (United States)

Published in SPIE Proceedings Vol. 0311:
Mosaic Focal Plane Methodologies II
William S. Chan; John T. Hall, Editor(s)

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