25 October 2016 Research on differences of AOTF imaging spectrometer spectral calibration results caused by ambient temperature
Author Affiliations +
Proceedings Volume 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology; 1015602 (2016) https://doi.org/10.1117/12.2243451
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Imaging spectrometer based on acousto-optic tunable filter (AOTF) is widely used in hyperspectral remote sensing at present, however, recently experiment results has shown that changes of environment temperature would cause driving frequencies corresponding different spectral position, result in rising of spectral curve measurement error . In order to make clear changes of AOTF spectral tuning curve under the different environment temperatures, it is necessary to develop an environmental temperature controlled calibration device, and perform plenty spectral calibration under different environment. According to the experiment results, temperature correction is considered in the spectral calibration result. The results show that the spectral characteristics of AOTF imaging spectrometer would be changed by the difference of environmental temperatures. Therefore uncertainty of spectral calibration would be decreased by temperature parameter added into the spectrum of calibration results. Therefore, the outfield measurement error would be decreased and precision of imaging spectrometer spectral measurement would be improved according to this discovery.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lei Hao, Ya-zhou Zhang, Guang-ping Wang, Jing-li Wu, "Research on differences of AOTF imaging spectrometer spectral calibration results caused by ambient temperature", Proc. SPIE 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology, 1015602 (25 October 2016); doi: 10.1117/12.2243451; https://doi.org/10.1117/12.2243451
PROCEEDINGS
10 PAGES


SHARE
Back to Top