Measurement, Correction and Precision Verification of Out-of-Band Response for Multispectral Remote Sensor

Abstract

Abstract:

Out-of-band response (out-of-band light leakage) is a significant factor affecting the radiometric calibration uncertainty of multispectral remote sensor (MsRS). For the MsRs out-of-band response measurement, correction and precision verification, the 443 nm band in multispectral imager using the functions of a novel spectrum-tunable integrating spheres reference light source (STIS) (i.e. discrete waveband and continuous spectrum output functions) was taken for example in batch experiments. After carrying out the out-of-band response measurement, correction and precision verification of multispectral imager, the weighted radiant luminance was amended based on the out-of-band response correction model, and compared with the measuring reference of spectral radiance meter. The results show that the difference between in-band weighted radiant luminance and measuring reference before and after the out-of-band response correction decreases from 8.8% to 2.9%, which confirms the application feasibility of STIS on the MsRS out-of-band response correction.

Key words: radiometric calibration, out-of-band response, weighted radiant luminance

CLC Number:

TN312.8

KANG Qing, YUAN Yin-Lin, LI Jian-Jun, ZHENG Xiao-Bing, WU Hao-Yu, ZHAI Wen-Chao, JIAN Hong-Hu, JIA Dong-Gen, YANG Wei-Feng, HONG Jin. Measurement, Correction and Precision Verification of Out-of-Band Response for Multispectral Remote Sensor[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(6): 456-464.

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