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http://dx.doi.org/10.5139/JKSAS.2013.41.3.240

Black Body Design and Verification for Non-Uniformity Correction of Imaging Sensor and Uncertainty Analysis  

Shin, Somin (Defence Space Technology Center)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.3, 2013 , pp. 240-245 More about this Journal
Abstract
Each pixel of InfraRed(IR) sensor differently responds to IR light as time elapses or the sensor on/off operation is repeated. As a result, the quality of IR sensor image is deteriorated, and therefore NUC(Non-uniformity Correction) is periodically needed for IR sensor. In this paper, in order to perform NUC in the Satellite, on-board V-grooved blackbody is designed with a baffle so that the emissivity of black body is to be higher than 0.995 as well as the temperature deviation is less than $1^{\circ}C$ in the range of the infrared wave length from 3.3 to $5.2{\mu}m$. To check its performance, the emissivity and the surface temperature of the blackbody by TRT(Transfer Reference Thermometer) and IR Micrometer scanner are measured, respectively. From the results, black body design is verified and the uncertainty of NUC is estimated through the measurement results.
Keywords
Black Body; Emissivity; IR Sensor; Non-Uniformity Correction;
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Times Cited By KSCI : 2  (Citation Analysis)
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