Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The imaging Fourier transform spectrometer (IFTS) carried on HJ-1A is the first spaceborne hyperspectral earth observation sensor in China. Shifts in the spectral channel center wavelengths of IFTS may occur after launch due to vibrations, and to changes in instrument temperature and pressure. ,  described an improved on-orbit spectral calibration method, which is based on spectrum angle matching beten the spectrometer-measured radiance spectrum and the modeled radiance spectrum at atmospheric absorption bands. Compared with the laboratory calibration result of IFTS, spectral shifts ranged from −3.18 to −3.4 nm re derived depending on cross-track spectral position at 760-nm oxygen bands, and from −3.53 to −3.79 nm at 820-nm water vapor bands. With the updated spectral calibration coefficient, the reflectance of vegetation and desert in our study site re reconstructed by applying a further atmospheric correction, and the strong spikes around the atmospheric absorption bands re almost obviously suppressed.
['Yaqiong Zhang', 'Zhengchao Chen', 'Hao Zhang', 'Wenjuan Zhang', 'Yanhong Wu', 'Bing Zhang']
I am writing a research paper on a idea Spectral calibration and reflectance reconstruction for the hyperspectral data derived from HJ-1A
[{"from": "human", "value": "I am writing a research paper on a idea Spectral calibration and reflectance reconstruction for the hyperspectral data derived from HJ-1A"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The imaging Fourier transform spectrometer (IFTS) carried on HJ-1A is the first spaceborne hyperspectral earth observation sensor in China. Shifts in the spectral channel center wavelengths of IFTS may occur after launch due to vibrations, and to changes in instrument temperature and pressure. ,  described an improved on-orbit spectral calibration method, which is based on spectrum angle matching beten the spectrometer-measured radiance spectrum and the modeled radiance spectrum at atmospheric absorption bands. Compared with the laboratory calibration result of IFTS, spectral shifts ranged from \u22123.18 to \u22123.4 nm re derived depending on cross-track spectral position at 760-nm oxygen bands, and from \u22123.53 to \u22123.79 nm at 820-nm water vapor bands. With the updated spectral calibration coefficient, the reflectance of vegetation and desert in our study site re reconstructed by applying a further atmospheric correction, and the strong spikes around the atmospheric absorption bands re almost obviously suppressed."}]