Real-Time Nonuniformity Correction For Focal Plane Arrays Using 12-Bit Digital Electronics

P. Mackey; F. R. Barone; N. A. Chu

doi:10.1117/12.932833

7 December 1981 Real-Time Nonuniformity Correction For Focal Plane Arrays Using 12-Bit Digital Electronics

P. Mackey, F. R. Barone, N. A. Chu

Proceedings Volume 0292, Processing of Images and Data from Optical Sensors; (1981) https://doi.org/10.1117/12.932833
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

The element-to-element variations caused by DC offset and responsivity non-uniformities of infrared focal plane arrays used in staring imaging systems must be reduced in order to achieve the desired performance. This paper discusses the design and performance of digital electronics for non-uniformity correction based on a two-temperature calibration technique. Unique features of the system include 12-bit dynamic range, compact size, a single arithmetic processor and microsequencer control with several levels of pipelining to provide flexible operation. The current configuration operates with arrays as large as 64x64 with data rates up to 60 Hz per frame. Data will be presented on noise characteristics and the effectiveness of offset and responsivity corrections. The usefulness of this system for evaluating focal plane arrays is demonstrated using an infrared CID.

Citation Download Citation

P. Mackey, F. R. Barone, and N. A. Chu "Real-Time Nonuniformity Correction For Focal Plane Arrays Using 12-Bit Digital Electronics", Proc. SPIE 0292, Processing of Images and Data from Optical Sensors, (7 December 1981); https://doi.org/10.1117/12.932833

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available