Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Initial On-Orbit Modulation Transfer Function Performance Analysis for Geostationary Ocean Color Imager

  • Oh, Eun-Song (Korea Ocean Satellite Center, Korea Ocean Research & Development Institute) ;
  • Kim, Sug-Whan (Space Optics Laboratory, Department of Astronomy, Yonsei University) ;
  • Cho, Seong-Ick (Korea Ocean Satellite Center, Korea Ocean Research & Development Institute) ;
  • Ryu, Joo-Hyung (Korea Ocean Satellite Center, Korea Ocean Research & Development Institute) ;
  • Ahn, Yu-Hwan (Korea Ocean Satellite Center, Korea Ocean Research & Development Institute)
  • Received : 2012.03.05
  • Accepted : 2012.05.03
  • Published : 2012.06.15
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Abstract

The world's first geostationary ocean color imager (GOCI) is a three-mirror anastigmat optical system 140 mm in diameter. Designed for 500 m ground sampling distance, this paper deals with on-orbit modulation transfer function (MTF)measurement and analysis for GOCI. First, the knife-edge and point source methods were applied to the 8th band (865 nm) image measured April 5th, 2011. The target details used are the coastlines of the Korean peninsula and of Japan, and an island 400 meters in diameter. The resulting MTFs are 0.35 and 0.34 for the Korean East Coastline and Japanese West Coastline edge targets, respectively, and 0.38 for the island target. The daily and seasonal MTF variations at the Nyquist frequency were also checked, and the result is $0.32{\pm}0.04$ on average. From these results, we confirm that the GOCI on-orbit MTF performance satisfies the design requirements of 0.32 for 865 nm wavelength.

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References

  1. Braga AB, Schowengerdt RA, Rojas F, Biggar SF, Calibration of the MODIS PFM SRCA for on-orbit cross-track MTF measurement, SPIE, 4135, 71-79 (2004). http://dx.doi.org/10.1117/12.494230
  2. Carnahan WH, Zhou G, Fourier transform techniques for the evaluation of the thematic mapper line spread function, PgERS, 52, 639-648 (1986).
  3. Cho S, Ahn Y-H, Han H-J, Ryu J-H, Prelaunch characterization of the geostationary ocean color imager, SPIE, 7459, 74590I (2009). http://dx.doi.org/10.1117/12.828957
  4. Cho S, Ahn Y-H, Ryu J-H, Kang G-S, Youn H-S, et al., Development of geostationary ocean color imager (GOCI), KJRS, 26, 157-165 (2010). https://doi.org/10.7780/kjrs.2010.26.2.157
  5. Choi T, IKONOS satellite on orbit modulation transfer function (MTF) measurement using edge and pulse method, MS Thesis, South Dakota State University (2002).
  6. Choi T, Che N, Xiong X, On-orbit aqua MODIS modulation transfer function trending in along-scan from the spectro-radiometric calibration assembly, SPIE, 7081, 70810A (2008). http://dx.doi.org/10.1117/12.793844
  7. Cook MK, Peterson BA, Dial G, Gibson L, Gerlach FW, et al., IKONOS technical performance assessment, SPIE, 4381, 94-108 (2001). http://dx.doi.org/10.1117/12.436997
  8. Crespi M, Vendictis LD, A procedure for high resolution satellite imagery quality assessment, Sensors, 9, 3289-3313 (2009). http://dx.doi.org/10.3390/s90503289
  9. Herve L, Francois F, Francis L, Pierre C, GOCI engineering team: GOCI MTF model and performances, COMS.TN. 00044.DPT.T.ASTR (2009).
  10. Holst GC, Electro-optical imaging system performance (SPIE Press, Bellingham, 2000).
  11. Hwang H, Choi Y-W, Kwak S, Kim M, Park W, et al., MTF assessment of high resolution satellite images using ISO 12233 slanted-edge method, SPIE, 7109, 710905 (2008). http://dx.doi.org/10.1117/12.800055
  12. Lee DH, Image restoration from asymmetric point spread function of high resolution remote sensing satellite with time delayed integration, PhD Dissertation, Yonsei University (2010).
  13. Leger D, Duffaut J, Robinet F, MTF measurement using spotlight, Proc IGARSS, 7803, 2010-2012 (1994). http://dx.doi.org/10.1109/IGARSS.1994.399638
  14. Maeda K, Kojima M, Azuma Y, Geometric and radiometric performance evaluation methods for marine observation satellite-1 (MOS-1) verification program (MVP), AcAau, 15, 297-304 (1987). http://dx.doi.org/10.1016/0094-5765(87)90164-0
  15. Manjunath KR, Two-dimensional on-orbit modulation transfer function analysis using convex mirror array, MS Thesis, South Dakota State University (2003).
  16. Viallefont F, Leger D, Improvement ofthe edge method for on-orbit MTF measurement, OExpr, 18, 3531-3545 (2010). http://dx.doi.org/10.1364/OE.18.003531
  17. Xiong X, Che N, Barnes WL, Terra MODIS on-orbit spectral characterization and performance, ITGAR, 44, 2198-2206 (2006). http://dx.doi.org/10.1109/TGRS.2006.872083

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