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地球同步气象卫星(SMS)多通道扫描辐射计(VISSR)是工作在地球同步轨道上的遥感仪器。它主要用于拍摄白天可见光云图及昼夜红外(10.5～12.5μm)云图。本文对扫描辐射计在该红外波段的调制传递函数作一分析及估算。扫描辐射计在红外通道调制传递函数的估算扫描辐射计拍摄一张云图要包括一系列的环节:光学系统对云图成象,经扫描后由光电器件转换成电信号,再经电子线路处理后发回地面。因此扫描辐射计系统的传递函数应是这一系列单个环节的传递函数的乘积。下面逐一
The Geostationary Meteorological Satellite (SMS) Multichannel Scanning Radiometer (VISSR) is a remote sensing instrument that operates on geosynchronous orbit. It is mainly used for shooting daytime visible clouds and diurnal infrared (10.5 ~ 12.5μm) clouds. This paper analyzes and estimates the modulation transfer function of the scanning radiometer in the infrared band. Scanning radiometer in the infrared channel modulation transfer function of the estimate Scanning radiometer to capture a cloud map to include a series of links: Optical imaging of cloud images, after scanning by photoelectric devices into electrical signals, and then by the electronic circuit processing Back to the ground. Therefore, the transfer function of the scanning radiometer system should be the product of the transfer functions of a series of individual links. One by one below