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针对应用于地表温度反演的航天遥感数据波段选择问题,文章提出了利用波长范围为8~10.5μm的热红外遥感数据反演地表温度的单通道反演算法:从温度敏感性的角度证明了利用波长范围为8~10.5μm的遥感数据反演地表温度的合理性;在此基础上,将仪器光谱响应率引入到基于大气校正原理的单通道反演算法中,提高了地表温度的反演精度。最后通过实验证明了利用此波段的热红外遥感数据反演地表温度的可行性。
Aiming at the problems of band selection of aerospace remote sensing data for surface temperature inversion, this paper presents a single-channel inversion algorithm for retrieving surface temperature using thermal infrared remote sensing data in the wavelength range of 8 ~ 10.5μm: From the perspective of temperature sensitivity, Using the remote sensing data with wavelength range of 8 ~ 10.5μm, the reasonableness of the surface temperature is retrieved. Based on this, the spectral response rate of the instrument is introduced into the single-channel inversion algorithm based on the atmospheric correction principle, which improves the inversion of the surface temperature Accuracy. Finally, the feasibility of using this band of thermal infrared remote sensing data to validate the inversion of surface temperature is proved experimentally.