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Proceedings Paper

Implementation of real-time nonuniformity correction with multiple NUC tables using FPGA in an uncooled imaging system
Author(s): Gyong Jin Oh; Lyang-June Kim; Sue-Ho Sheen; Gyou-Phyo Koo; Sang-Hun Jin; Bo-Yeon Yeo; Jong-Ho Lee
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Paper Abstract

This paper presents a real time implementation of Non Uniformity Correction (NUC). Two point correction and one point correction with shutter were carried out in an uncooled imaging system which will be applied to a missile application. To design a small, light weight and high speed imaging system for a missile system, SoPC (System On a Programmable Chip) which comprises of FPGA and soft core (Micro-blaze) was used. Real time NUC and generation of control signals are implemented using FPGA. Also, three different NUC tables were made to make the operating time shorter and to reduce the power consumption in a large range of environment temperature. The imaging system consists of optics and four electronics boards which are detector interface board, Analog to Digital converter board, Detector signal generation board and Power supply board. To evaluate the imaging system, NETD was measured. The NETD was less than 160mK in three different environment temperatures.

Paper Details

Date Published: 6 May 2009
PDF: 8 pages
Proc. SPIE 7298, Infrared Technology and Applications XXXV, 72982E (6 May 2009); doi: 10.1117/12.820189
Show Author Affiliations
Gyong Jin Oh, LIG Nex1 Co., Ltd. (Korea, Republic of)
Lyang-June Kim, LIG Nex1 Co., Ltd. (Korea, Republic of)
Sue-Ho Sheen, LIG Nex1 Co., Ltd. (Korea, Republic of)
Gyou-Phyo Koo, LIG Nex1 Co., Ltd. (Korea, Republic of)
Sang-Hun Jin, LIG Nex1 Co., Ltd. (Korea, Republic of)
Bo-Yeon Yeo, LIG Nex1 Co., Ltd. (Korea, Republic of)
Jong-Ho Lee, Agency for Defense Development (Korea, Republic of)

Published in SPIE Proceedings Vol. 7298:
Infrared Technology and Applications XXXV
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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