Impact analysis method of imaging spectrometer radiometric calibration precision on data quality

An imaging spectrometer and radiation calibration technology, which is applied in the field of analysis of the influence of imaging spectrometer radiation calibration accuracy on data quality, to achieve the effects of improving simulation accuracy and effective evaluation
CN102879094AActive Publication Date: 2013-01-16青岛唯实空间数据科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
青岛唯实空间数据科技有限公司
Publication Date
2013-01-16

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Abstract

An impact analysis method of imaging spectrometer radiometric calibration precision on data quality includes six steps. Uncertainty of entrance pupil radiance in an imaging spectrometer radiometric calibration process is computed by analyzing uncertainty origins impacting the entrance pupil radiance in a laboratory radiometric calibration process and uncertainty of each impact quantity, probability distribution of the entrance pupil radiance is obtained by the central limit theorem, further the uncertainties of calibration coefficients and the probability distribution form of the calibration coefficients are obtained by computing of two-dimensional random variables and function probability distribution, and finally uncertainty and probability distribution of recovery radiance are obtained. The method can be used for analyzing impacts of the radiometric calibration precision on the imaging spectrometer remote sensing data quality, so that precision of remote sensing data simulation is improved beneficially, and the remote sensing data quality can be more effectively evaluated in a remote sensing process.
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Description

technical field

[0001] The invention relates to a method for analyzing the influence of imaging spectrometer radiation calibration precision on data quality, which can be used to evaluate the reliability of radiance measurement of imaging spectrometer, improve calibration precision and data quality. It is beneficial to more accurately analyze the reliability of the data cube information obtained by the remote sensing detection of the imaging spectrometer, and has guiding significance for the data simulation of the hyperspectral imager under different radiometric calibration accuracy. It belongs to the technical field of hyperspectral remote sensing detection. Background technique

[0002] Hyperspectral remote sensing technology is a brand-new remote sensing technology that has developed rapidly in recent years. It uses imaging spectrometers to simultaneously image surface objects in tens or hundreds of bands with nanoscale spectral resolution, and can obtain the information ...

Claims

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