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Radiometric Calibration of FTIR Spectrometer For Passive Remote Sensing Application

수동형 원격탐지 FTIR 분광계의 Radiometric Calibration

  • Published : 2006.10.25

Abstract

In this paper, radiometric calibration of a FTIR spectrometer for passive remote sensing application was introduced and verified. Radiometric calibration is a significant signal processing procedure to retrieve the object radiance from the measured spectrum. The object radiance is measured and registered distorted by the detector's responsivity dependent on wavelength and instrument self-emission. Radiance of two temperature points, hot temperature and cold temperature, from a well-controlled blackbody was measured and used to obtain the scale factor and offset factor which are required for radiometric calibration. For gas phase C2H5OH. radiometric calibration was done and verified through comparison of its emission line width and intensity with the standard spectrum.

References

  1. Simon J. Hook and Anne B. Kahle. 'The Micro Fourier Transform Interferometer(uFTIR) - A New Field Spectrometer for Acquisition of Infrared Data of Natural Surfaces'. REMOTE SENS. ENVIRON. 56 :172-181, 1996 https://doi.org/10.1016/0034-4257(95)00231-6
  2. Andrew R. Korb, Peter Dybwad, Winthrop Wadsworth, and John W. Salisbury. 'Portable Fourier transform infrared spectroradiometer for field measurements of radiance and emissivity'. APPLIED OPTICS / Vol. 35, No. 10 / 1 April 1996
  3. 박도현, 김대성, 배효욱, 오승일. '실시간 원거리 화학 탐지용 소형 분광센서 개발-중간보고서'. 고등기술연구원. 2004
  4. 박도현, 김대성, 배효욱, 오승일. '실시간 원격탐지 FTIR 분광계의 스펙트럼 분석 알고리즘 - 기술보고서'. 고등기술연구원. 2005
  5. Roland Harig, and Gerhard Matz. 'Toxic Cloud Imaging by Infrared pectrometry : A Scanning FTIR System for Identification and Visualization', FIELD ANALYTICAL CHEMISTRY AND TECHNOLOGY 5(1-2):75-90, 2001 https://doi.org/10.1002/fact.1008

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