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多角度偏振辐射计是一种对地观测的辐射偏振测量仪器。仪器提供的多波段、多角度、全偏振信息主要用于环境大气监测、气候变迁研究、大气科学研究、地球辐射收支平衡研究和遥感数据高精度大气校正,为确定气溶胶对气候的驱动作用和区域大气气溶胶状态及其变化提供高精度数据。针对这一需求,提出了多角度偏振辐射计星上定标器的设计方案。首先介绍了多角度偏振辐射计的研制背景、星上定标技术的产生原因以及国外星上定标器的设计方案。重点阐述了多角度偏振辐射计星上定标器的设计,包括光学设计、机械设计和电路设计,解释说明了各部分的功能和作用以及相关参数。最后对提高星上定标精度提出了几点建议。
Multi-angle polarization radiometer is a ground-based radiation polarization measurement instrument. Multi-band, multi-angle, and full polarization information provided by the instrument is mainly used for environmental atmosphere monitoring, climate change research, atmospheric science research, earth radiation balance study and remote sensing data high precision atmospheric correction. In order to determine the aerosol’s driving effect on climate And regional atmospheric aerosol state and its changes provide high-precision data. In response to this demand, a multi-angle polarizer on-board scaler design is proposed. Firstly, the research background of the multi-angle polarization radiometer, the reason of the star calibration technology and the design scheme of the star-scale calibrator in foreign countries are introduced. The design of multi-angle polarimeter on-board scaler, including optical design, mechanical design and circuit design, is mainly described. The functions and functions of each part and the related parameters are explained. Finally, it puts forward some suggestions on how to improve the calibration accuracy of satellite.