DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jun-Ho | ko |
dc.contributor.author | Jung, Yong-Suk | ko |
dc.contributor.author | Ryoo, Seung-Yeol | ko |
dc.contributor.author | Kim, Young-Ju | ko |
dc.contributor.author | Park, Byong-Ug | ko |
dc.contributor.author | Kim, Hyun-Jung | ko |
dc.contributor.author | Youn, Sung-Kie | ko |
dc.contributor.author | Park, Kwang-Woo | ko |
dc.contributor.author | Lee, Haeng-Bok | ko |
dc.date.accessioned | 2013-03-11T19:57:30Z | - |
dc.date.available | 2013-03-11T19:57:30Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011-06 | - |
dc.identifier.citation | JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v.15, no.2, pp.174 - 181 | - |
dc.identifier.issn | 1226-4776 | - |
dc.identifier.uri | http://hdl.handle.net/10203/100112 | - |
dc.description.abstract | An airborne sensor is developed for remote sensing on an aerial vehicle (UV). The sensor is an optical payload for an eletro-opticaUinfrared (EO/IR) dual band camera that combines visible and IR imaging capabilities in a compact and lightweight package. It adopts a Ritchey-Chretien telescope for the common front end optics with several relay optics that divide and deliver EO and IR bands to a charge-coupled-device (CCD) and an IR detector, respectively. The EO/IR camera for dual bands is mounted on a two-axis gimbal that provides stabilized imaging and precision pointing in both the along and cross-track directions. We first investigate the mechanical deformations, displacements and stress of the EO/IR camera through finite element analysis (FEA) for five cases: three gravitational effects and two thermal conditions. For investigating gravitational effects, one gravitational acceleration (1 g) is given along each of the +x, +y and +z directions. The two thermal. conditions are the overall temperature change to 30 degrees C from 20 degrees C and the temperature gradient across the primary mirror pupil from -5 degrees C to +5 degrees C. Optical performance, represented by the modulation transfer function (MTF), is then predicted by integrating the FEA results into optics design/analysis software. This analysis shows the IR channel can sustain imaging performance as good as designed, i.e., MTF 38% at 13 line-pairs-per-mm (lpm), with refocus capability. Similarly, the EO channel can keep the designed performance (MTF 73% at 27.3 lpm) except in the case of the overall temperature change, in which the EO channel experiences slight performance degradation (MTF 16% drop) for 20 degrees C overall temperate change. | - |
dc.language | English | - |
dc.publisher | OPTICAL SOC KOREA | - |
dc.title | Imaging Performance Analysis of an EO/IR Dual Band Airborne Camera | - |
dc.type | Article | - |
dc.identifier.wosid | 000292064200012 | - |
dc.identifier.scopusid | 2-s2.0-79959865042 | - |
dc.type.rims | ART | - |
dc.citation.volume | 15 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 174 | - |
dc.citation.endingpage | 181 | - |
dc.citation.publicationname | JOURNAL OF THE OPTICAL SOCIETY OF KOREA | - |
dc.contributor.localauthor | Youn, Sung-Kie | - |
dc.contributor.nonIdAuthor | Lee, Jun-Ho | - |
dc.contributor.nonIdAuthor | Jung, Yong-Suk | - |
dc.contributor.nonIdAuthor | Ryoo, Seung-Yeol | - |
dc.contributor.nonIdAuthor | Kim, Young-Ju | - |
dc.contributor.nonIdAuthor | Kim, Hyun-Jung | - |
dc.contributor.nonIdAuthor | Park, Kwang-Woo | - |
dc.contributor.nonIdAuthor | Lee, Haeng-Bok | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | MTF | - |
dc.subject.keywordAuthor | Airborne sensor | - |
dc.subject.keywordAuthor | Optomechanics | - |
dc.subject.keywordAuthor | EO | - |
dc.subject.keywordAuthor | IR | - |
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