论文标题
在MTG-S IRS仪器的背景下缓解校准响铃
Mitigation of calibration ringing in the context of the MTG-S IRS Instrument
论文作者
论文摘要
Eumetsat当前正在开发红外傅立叶变换光谱仪（IRS）在MeteoSat第三代发声卫星（MTG-S）的板上的地面处理链。在这种情况下，作者研究了特定类型的辐射误差的影响，此后称为校准响铃。当仪器辐射传输函数（RTF）在仪器光谱响应函数（SRF）的域内变化时，它以傅立叶变换光谱仪出现。在长波红外（LWIR）频段中的MTG-S IRS仪器的上下文中，模拟了预期的辐射误差。设计了使用主组件（PC）分解，即软件校正，称为RTF均匀化，并在MTG-S IRS的背景下进行了评估。
EUMETSAT is currently developing the on-ground processing chain of the infrared Fourier transform spectrometers (IRS) on-board of the Meteosat Third Generation sounding satellites (MTG-S). In this context, the authors have investigated the impact of a particular type of radiometric error, called hereafter the calibration ringing. It arises in Fourier transform spectrometers when the instrument Radiometric Transfer Function (RTF) varies within the domain of the instrument Spectral Response Function (SRF). The expected radiometric errors are simulated in the context of the MTG-S IRS instrument in the long wave infrared (LWIR) band. Making use of a principal components (PC) decomposition, a software correction, called RTF uniformisation, is designed and its performance is assessed in the context of MTG-S IRS.
