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Environmental Disaster Reduction II A/B Star Atmosphere Corrector Loads Factory
[ Instrument Network Instrument Research and Development ] On July 19, the A/B satellite atmospheric correction sub-system of the Environmental Disaster Mitigation 2 passed the factory review in Hefei Science Island.
Main physical map
Environmental Disaster Mitigation-2 A/B satellite is an important part of the resolution optical observation constellation of the national civil space infrastructure remote sensing satellite. It consists of two satellites with identical technical status, and each satellite is equipped with an atmospheric corrector. The atmospheric correction instrument acquires atmospheric multi-spectral polarization information in the same field of view as the main payload 16-meter camera through traverse scanning detection, and acquires spectrum and polarization information through time synchronization and space coverage detection methods to achieve high accuracy of aerosol and water vapor Detection and inversion to obtain atmospheric parameters over the imaging area. Using this atmospheric parameter as input, the atmospheric correction model given to the radiation transmission carries out the correction of 16-meter camera and other load images to obtain clearer quantitative ground surface images, which can meet the application requirements for atmospheric correction of image data products such as satellite cameras.
The atmospheric correction instrument has been developed since October 2017. The sample A star product was delivered for installation in July 2019, and the original sample B star product was delivered for installation in October 2019. After sub-system, entire satellite testing and testing, the product Function, performance and interface meet the requirements.
The meeting review team organized by the Aerospace Project Office of the Hefei Academy of Material Sciences of the Chinese Academy of Sciences reviewed the factory data package documents of the atmospheric correction instrument, listened to the atmospheric correction instrument factory development and quality summary report, product assurance summary report and overall quality review report, and concluded that: atmospheric correction instrument According to the development technology process, all the work before delivery was completed. After testing and experimental verification, the product function, performance and interface meet the overall technical requirements. The technology state of the entire development process is controlled and there are no quality problems. According to the dean of the fifth aerospace institute ( No. 5 Order No. 01), satellite model production assurance requirements, production assurance outline and production assurance work plan, product assurance and other related work have been completed, the product data package is complete and complete, and it is agreed to pass the factory review.