光学精密工程2017，Vol.25Issue(9)：2259-2266,8.DOI:10.3788/OPE.20172509.2259
传递辐射计光谱通道的优化设计
Optimization of spectral channel of transfer radiometer
摘要
Abstract
As channel selection acts an important influence on calibration accuracies in the calibration of imaging spectrometers by transfer radiometer ,herein MATLAB language was adopted to compile a merit function ,which was used as the evaluation standard of inversion accuracy of the spectral curve of a blackbody at a temperature of 3000k .The MATLAB genetic algorithm and the pattern search algorithm toolbox were employed to solute the minimal value of function that was the optimal spectral channel distribution of the transfer radiometer .Finally ,influence factors of the number of spectral channels ,including the shifting of center wavelength ,the broadening of bandwidth and measurement system error ,were analyzed .The results show that the spectral inversion accuracy of is 0 .12% ,when the shifting of center wavelength does not exceed 0 .2 nm ,the broadening of bandwidth is not more than 0 .02 nm ,and the system error is less than 0 .1% .This study can guide the design of transfer radiometers and has a great significance to improve the calibration accuracy of earth imaging spectrometers .关键词
成像光谱仪/传递辐射计/优化选择通道/反演精度/遗传算法Key words
imaging spectrometer/transfer radiometer/optimal selection channel/inversion accuracy/the genetic algorithm分类
信息技术与安全科学引用本文复制引用
孙立微,叶新,王玉鹏,方伟..传递辐射计光谱通道的优化设计[J].光学精密工程,2017,25(9):2259-2266,8.基金项目
国家863高技术研究发展计划资助项目(No.2015AA123703) （No.2015AA123703）
国家自然科学基金资助项目(No.41474161) （No.41474161）
