Comparison of working mechanisms between SBRC and SIRC for a BLIP sensor (IMAGE)
Caption
In SBRC, the responsivity of an IR sensor is measured as a black-box to obtain its whole output when viewing the radiation from a source (i.e. blackbody). Conversely, in SIRC, the responsivity of a full or at least closely-approached BLIP sensor, which can be satisfied by most onboard sensors, is calculated by modeling the relationship between the incident background radiation and its responsivity. In essence, SBRC is a measurement-based method while SIRC is a modeling-based one. Particularly, the responsivity here merely refers to the linear component of the whole relationship between DN and radiance illustrated above.
Credit
by Qiang Guo, Fuchun Chen, Xiangyang Li, Boyang Chen, Xin Wang, Guilin Chen, and Caiying Wei
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Credit must be given to the creator.
License
CC BY