【摘要】 文章针对风云四号气象卫星上的星载傅立叶变换光谱仪的结构特点,采用内黑体插入中间光路进行辐射定标,具体给出实现的原理和方法,提出望远镜与黑体转向镜传输率的在轨测量方法。内辐射定标方法为下一代遥感仪器星上红外辐射定标提供了新途径。更多还原

【Abstract】 The space-borne Fourier Transform Spectrometer carried by FY-4 meteorology satellite is one of infrared remote sensing instruments. It acquires the temperature,pressure and humidity of atmosphere,and supplies the valuable weather data for next numerical weather forecast.Based on the sounder’s structure,the internal radiance calibration by inserting a blackbody pick-off mirror is presented.The transmission on-orbit measurement of telescope and blackbody pick-off mirror is also discussed.This method provides a new approach for the geostationary remote sensing instrument of next generation.更多还原