航天遥感器中波红外通道星上辐射定标技术分析word格式论文.docxVIP

AbstractBased on a remote sensing project, the on.board calibration technology for mid.infrared channel is analyzed in the thesis. The method and algorithm of on.board calibration is researched. Calibration mechanism is designed and the technology of design is verified by verification test. The research provides basis for project of on.board calibration for mid.infrared channel.In the thesis, principle of radicalization calibration and algorithm of relative calibration are researched. Project adaptability of different algorithms is analyzed.Based on design parameters of remote sensor, On.board calibration mechanism is designed, which adopts partial optical path full. aperture design and two.point method of calibration. According to the analysis of transmission about features reflected solar radiation and heat radiation from earth to on.board calibration system, the on.board calibration temperatures are computed. Finally on.board calibration temperatures setting, dynamic range, integration time and NE?T setting are analyzed synthetically and optimum designed. The comprehensive design cycle and algorithm are advanced.According to research of on.board calibration mechanism design, a simple and reliable design is adopted in which the makeup, structure，mode and material design parameters ofon.board calibration mechanism are analyzed. Based on the method of on.board calibration, on.board calibration accuracy is computed.According to calibration test in the laboratory and outdoor location imaging test, the on.board calibration technology is verified. Comparing relative calibration accuracy of uniform field before relative calibration with the accuracy after relative calibration and visual effect of outdoor location image before relative calibration with the image after relative calibration, results show that the technology of on.board calibration can satisfy requirements of on.board calibration.Keywords: Aerospace remote sensor，Mid-infrared，On-board Radiometric calibration