风云四号静止轨道气象卫星成像仪典型观测区域设计
Typical Observation Area Design of FY-4 Geostationary Meteorological Satellite Imager
中文摘要：
风云四号气象卫星是我国新一代静止轨道气象卫星，采用三轴稳定姿态控制方式，极大地提高对地观测精度及观测频次，同时也对有效载荷观测模式的灵活设计提出了更高要求。星上装载的静止轨道辐射成像仪是我国静止轨道气象卫星携带的同类仪器中最为先进的。利用最先进的观测仪器，提高观测效率，在气象服务中发挥更大的作用是气象卫星应用的根本。深入探讨了风云四号静止轨道气象卫星成像仪的工作模式，首次针对不同的观测需求提出了灵活的成像仪观测区域设计方案，有效满足典型区域的不同观测需求，在成像仪在轨测试中发挥了重要作用，为开展业务运行奠定了坚实的基础。
中文关键词：
风云四号，气象卫星，成像仪，观测区域设计，区域成像
KeyWords：
FY-4, meteorological satellite, imager, observation area design, regional imaging
Abstract：
Fengyun-4 (FY-4) is a new generation of geostationary meteorological satellite in China. The newly used three-axis stabilized attitude control platform can greatly improve observation precision as well as frequency. It also puts forward improved requirements towards ?exible observation mode design of the instruments. Advanced geostationary radiation imager (AGRI) is the most advanced equipment of its kind. Making good use of advanced equipment and improving observation efciency play an important role in meteorological services, which is the essence of the meteorological satellite application. This paper discusses the observation modes of the FY-4 imager, and puts forward ?exible area observation schemes for di?erent needs for the frst time. These ?exible observation schemes can satisfy di?erent observation requirements over typical areas. This research plays an important role in the FY-4A in orbit tests, which lays a foundation for AGRI’s daily operation.