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凝视型地球辐射探测仪是我国的新型空间应用遥感仪器,仪器具有全波探测通道和短波探测通道,采用腔体探测器,对地凝视观测,视场覆盖地表边缘,用于从空间的低轨道卫星平台测量地球辐射出射总量,提供地球辐射收支信息.作为定量化应用的遥感仪器,对仪器提出了高精度的定标需求,本文结合仪器的设计特点,提出了使用辐射标准传递方法,先用黑体标定凝视型地球辐射探测仪全波腔体探测通道,继而用全波通道标定积分球,再用标定好的积分球对凝视型地球辐射探测仪短波探测通道进行标定的办法,提高了短波探测通道的辐射标定精度.
Staring radiation detector is a new type of space applications in China remote sensing instruments, the instrument has a full-wave detection channel and short-wave detection channels, the use of cavity detectors, to gaze observation, the field of view covering the edge of the ground for low-orbital space Satellite platform to measure the total amount of Earth’s radiation to provide the Earth’s radiation revenue and expenditure information.As a quantitative application of remote sensing instruments, the instrument proposed a high-precision calibration requirements, combined with the design features of the instrument, the proposed radiation standard transmission method, The method of calibrating the short-wave detection channel of the staring radiation detector by calibrating the full-wave cavity detection channel with the bold body and then calibrating the integrating sphere with the full-wave channel and calibrating the short-wave detection channel with the calibrated earth radiation detector Radiometric calibration accuracy of shortwave detection channels.